Home / 147,387.74-203,337.34-90,700.70

Finding the Fourth Proportional to 147,387.74, 203,337.34 and 90,700.70

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Solution

The fourth proportional to 147,387.74, 203,337.34 and 90,700.70 is: 125,131.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,387.74 : 203,337.34 = 90,700.70 : x
  2. Step 2: Convert to fraction form
    147,387.74/203,337.34 = 90,700.70/x
  3. Step 3: Cross multiply
    147,387.74x = 203,337.34 × 90,700.70
  4. Step 4: Simplify right side
    147,387.74x = 18,442,837,830.70
  5. Step 5: Solve for x
    x = 18,442,837,830.70/147,387.74
  6. Step 6: Final answer
    x = 125,131.43

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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.