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Finding the Fourth Proportional to 145,127.29, 217,775.01 and 60,880

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Solution

The fourth proportional to 145,127.29, 217,775.01 and 60,880 is: 91,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,127.29 : 217,775.01 = 60,880 : x
  2. Step 2: Convert to fraction form
    145,127.29/217,775.01 = 60,880/x
  3. Step 3: Cross multiply
    145,127.29x = 217,775.01 × 60,880
  4. Step 4: Simplify right side
    145,127.29x = 13,258,142,608.80
  5. Step 5: Solve for x
    x = 13,258,142,608.80/145,127.29
  6. Step 6: Final answer
    x = 91,355.27

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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.