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Finding the Fourth Proportional to 125,048, 187,618.08 and 65,881.28

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Solution

The fourth proportional to 125,048, 187,618.08 and 65,881.28 is: 98,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,048 : 187,618.08 = 65,881.28 : x
  2. Step 2: Convert to fraction form
    125,048/187,618.08 = 65,881.28/x
  3. Step 3: Cross multiply
    125,048x = 187,618.08 × 65,881.28
  4. Step 4: Simplify right side
    125,048x = 12,360,519,261.54
  5. Step 5: Solve for x
    x = 12,360,519,261.54/125,048
  6. Step 6: Final answer
    x = 98,846.20

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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.