Home / 125,222.32-187,774.02-72,647.92

Finding the Fourth Proportional to 125,222.32, 187,774.02 and 72,647.92

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Solution

The fourth proportional to 125,222.32, 187,774.02 and 72,647.92 is: 108,937.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,222.32 : 187,774.02 = 72,647.92 : x
  2. Step 2: Convert to fraction form
    125,222.32/187,774.02 = 72,647.92/x
  3. Step 3: Cross multiply
    125,222.32x = 187,774.02 × 72,647.92
  4. Step 4: Simplify right side
    125,222.32x = 13,641,391,983.04
  5. Step 5: Solve for x
    x = 13,641,391,983.04/125,222.32
  6. Step 6: Final answer
    x = 108,937.38

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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.