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Finding the Fourth Proportional to 125,208.84, 187,810.52 and 30,439.52

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Solution

The fourth proportional to 125,208.84, 187,810.52 and 30,439.52 is: 45,658.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,208.84 : 187,810.52 = 30,439.52 : x
  2. Step 2: Convert to fraction form
    125,208.84/187,810.52 = 30,439.52/x
  3. Step 3: Cross multiply
    125,208.84x = 187,810.52 × 30,439.52
  4. Step 4: Simplify right side
    125,208.84x = 5,716,862,625.38
  5. Step 5: Solve for x
    x = 5,716,862,625.38/125,208.84
  6. Step 6: Final answer
    x = 45,658.62

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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.