Home / 157,961.12-218,000.52-89,963.12

Finding the Fourth Proportional to 157,961.12, 218,000.52 and 89,963.12

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Solution

The fourth proportional to 157,961.12, 218,000.52 and 89,963.12 is: 124,157.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,961.12 : 218,000.52 = 89,963.12 : x
  2. Step 2: Convert to fraction form
    157,961.12/218,000.52 = 89,963.12/x
  3. Step 3: Cross multiply
    157,961.12x = 218,000.52 × 89,963.12
  4. Step 4: Simplify right side
    157,961.12x = 19,612,006,940.82
  5. Step 5: Solve for x
    x = 19,612,006,940.82/157,961.12
  6. Step 6: Final answer
    x = 124,157.18

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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.