Home / 153,747.60-212,086.40-90,073.10

Finding the Fourth Proportional to 153,747.60, 212,086.40 and 90,073.10

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Solution

The fourth proportional to 153,747.60, 212,086.40 and 90,073.10 is: 124,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,747.60 : 212,086.40 = 90,073.10 : x
  2. Step 2: Convert to fraction form
    153,747.60/212,086.40 = 90,073.10/x
  3. Step 3: Cross multiply
    153,747.60x = 212,086.40 × 90,073.10
  4. Step 4: Simplify right side
    153,747.60x = 19,103,278,005.04
  5. Step 5: Solve for x
    x = 19,103,278,005.04/153,747.60
  6. Step 6: Final answer
    x = 124,250.90

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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.