Home / 157,947.84-217,967.49-86,327.82

Finding the Fourth Proportional to 157,947.84, 217,967.49 and 86,327.82

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Solution

The fourth proportional to 157,947.84, 217,967.49 and 86,327.82 is: 119,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,947.84 : 217,967.49 = 86,327.82 : x
  2. Step 2: Convert to fraction form
    157,947.84/217,967.49 = 86,327.82/x
  3. Step 3: Cross multiply
    157,947.84x = 217,967.49 × 86,327.82
  4. Step 4: Simplify right side
    157,947.84x = 18,816,658,242.57
  5. Step 5: Solve for x
    x = 18,816,658,242.57/157,947.84
  6. Step 6: Final answer
    x = 119,132.10

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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.