Home / 157,928.28-236,929.56-51,311.88

Finding the Fourth Proportional to 157,928.28, 236,929.56 and 51,311.88

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Solution

The fourth proportional to 157,928.28, 236,929.56 and 51,311.88 is: 76,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,928.28 : 236,929.56 = 51,311.88 : x
  2. Step 2: Convert to fraction form
    157,928.28/236,929.56 = 51,311.88/x
  3. Step 3: Cross multiply
    157,928.28x = 236,929.56 × 51,311.88
  4. Step 4: Simplify right side
    157,928.28x = 12,157,301,151.17
  5. Step 5: Solve for x
    x = 12,157,301,151.17/157,928.28
  6. Step 6: Final answer
    x = 76,979.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.