Home / 150,864.51-208,164.08-102,504.78

Finding the Fourth Proportional to 150,864.51, 208,164.08 and 102,504.78

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Solution

The fourth proportional to 150,864.51, 208,164.08 and 102,504.78 is: 141,436.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,864.51 : 208,164.08 = 102,504.78 : x
  2. Step 2: Convert to fraction form
    150,864.51/208,164.08 = 102,504.78/x
  3. Step 3: Cross multiply
    150,864.51x = 208,164.08 × 102,504.78
  4. Step 4: Simplify right side
    150,864.51x = 21,337,812,711.78
  5. Step 5: Solve for x
    x = 21,337,812,711.78/150,864.51
  6. Step 6: Final answer
    x = 141,436.93

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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.