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Finding the Fourth Proportional to 123,995.76, 186,005.88 and 39,734.70

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Solution

The fourth proportional to 123,995.76, 186,005.88 and 39,734.70 is: 59,605.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,995.76 : 186,005.88 = 39,734.70 : x
  2. Step 2: Convert to fraction form
    123,995.76/186,005.88 = 39,734.70/x
  3. Step 3: Cross multiply
    123,995.76x = 186,005.88 × 39,734.70
  4. Step 4: Simplify right side
    123,995.76x = 7,390,887,840.04
  5. Step 5: Solve for x
    x = 7,390,887,840.04/123,995.76
  6. Step 6: Final answer
    x = 59,605.97

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1.5x scale

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.