Home / 157,849,903.54-217,724,781.31-102,920,161.78

Finding the Fourth Proportional to 157,849,903.54, 217,724,781.31 and 102,920,161.78

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Solution

The fourth proportional to 157,849,903.54, 217,724,781.31 and 102,920,161.78 is: 141,959,350.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,849,903.54 : 217,724,781.31 = 102,920,161.78 : x
  2. Step 2: Convert to fraction form
    157,849,903.54/217,724,781.31 = 102,920,161.78/x
  3. Step 3: Cross multiply
    157,849,903.54x = 217,724,781.31 × 102,920,161.78
  4. Step 4: Simplify right side
    157,849,903.54x = 22,408,269,716,534,616
  5. Step 5: Solve for x
    x = 22,408,269,716,534,616/157,849,903.54
  6. Step 6: Final answer
    x = 141,959,350.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.