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Finding the Fourth Proportional to 157,552, 217,440.48 and 89,579.28

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Solution

The fourth proportional to 157,552, 217,440.48 and 89,579.28 is: 123,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,552 : 217,440.48 = 89,579.28 : x
  2. Step 2: Convert to fraction form
    157,552/217,440.48 = 89,579.28/x
  3. Step 3: Cross multiply
    157,552x = 217,440.48 × 89,579.28
  4. Step 4: Simplify right side
    157,552x = 19,478,161,641.25
  5. Step 5: Solve for x
    x = 19,478,161,641.25/157,552
  6. Step 6: Final answer
    x = 123,630.05

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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.