Home / 157,043.90-216,726.28-89,988.86

Finding the Fourth Proportional to 157,043.90, 216,726.28 and 89,988.86

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Solution

The fourth proportional to 157,043.90, 216,726.28 and 89,988.86 is: 124,187.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,043.90 : 216,726.28 = 89,988.86 : x
  2. Step 2: Convert to fraction form
    157,043.90/216,726.28 = 89,988.86/x
  3. Step 3: Cross multiply
    157,043.90x = 216,726.28 × 89,988.86
  4. Step 4: Simplify right side
    157,043.90x = 19,502,950,869.24
  5. Step 5: Solve for x
    x = 19,502,950,869.24/157,043.90
  6. Step 6: Final answer
    x = 124,187.89

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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.