Home / 115,178.62-158,892.14-67,402.40

Finding the Fourth Proportional to 115,178.62, 158,892.14 and 67,402.40

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Solution

The fourth proportional to 115,178.62, 158,892.14 and 67,402.40 is: 92,983.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,178.62 : 158,892.14 = 67,402.40 : x
  2. Step 2: Convert to fraction form
    115,178.62/158,892.14 = 67,402.40/x
  3. Step 3: Cross multiply
    115,178.62x = 158,892.14 × 67,402.40
  4. Step 4: Simplify right side
    115,178.62x = 10,709,711,577.14
  5. Step 5: Solve for x
    x = 10,709,711,577.14/115,178.62
  6. Step 6: Final answer
    x = 92,983.50

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1.5x scale

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.