Home / 153,402.64-229,028-129,789.52

Finding the Fourth Proportional to 153,402.64, 229,028 and 129,789.52

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Solution

The fourth proportional to 153,402.64, 229,028 and 129,789.52 is: 193,773.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,402.64 : 229,028 = 129,789.52 : x
  2. Step 2: Convert to fraction form
    153,402.64/229,028 = 129,789.52/x
  3. Step 3: Cross multiply
    153,402.64x = 229,028 × 129,789.52
  4. Step 4: Simplify right side
    153,402.64x = 29,725,434,186.56
  5. Step 5: Solve for x
    x = 29,725,434,186.56/153,402.64
  6. Step 6: Final answer
    x = 193,773.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.