Home / 157,104.18-216,805.28-89,118.86

Finding the Fourth Proportional to 157,104.18, 216,805.28 and 89,118.86

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Solution

The fourth proportional to 157,104.18, 216,805.28 and 89,118.86 is: 122,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,104.18 : 216,805.28 = 89,118.86 : x
  2. Step 2: Convert to fraction form
    157,104.18/216,805.28 = 89,118.86/x
  3. Step 3: Cross multiply
    157,104.18x = 216,805.28 × 89,118.86
  4. Step 4: Simplify right side
    157,104.18x = 19,321,437,865.96
  5. Step 5: Solve for x
    x = 19,321,437,865.96/157,104.18
  6. Step 6: Final answer
    x = 122,984.87

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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.