Home / 155,200.13-214,175.94-90,713.70

Finding the Fourth Proportional to 155,200.13, 214,175.94 and 90,713.70

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Solution

The fourth proportional to 155,200.13, 214,175.94 and 90,713.70 is: 125,184.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,200.13 : 214,175.94 = 90,713.70 : x
  2. Step 2: Convert to fraction form
    155,200.13/214,175.94 = 90,713.70/x
  3. Step 3: Cross multiply
    155,200.13x = 214,175.94 × 90,713.70
  4. Step 4: Simplify right side
    155,200.13x = 19,428,691,968.38
  5. Step 5: Solve for x
    x = 19,428,691,968.38/155,200.13
  6. Step 6: Final answer
    x = 125,184.77

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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.