Home / 125,518.40-187,966.56-69,997.76

Finding the Fourth Proportional to 125,518.40, 187,966.56 and 69,997.76

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Solution

The fourth proportional to 125,518.40, 187,966.56 and 69,997.76 is: 104,823.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,518.40 : 187,966.56 = 69,997.76 : x
  2. Step 2: Convert to fraction form
    125,518.40/187,966.56 = 69,997.76/x
  3. Step 3: Cross multiply
    125,518.40x = 187,966.56 × 69,997.76
  4. Step 4: Simplify right side
    125,518.40x = 13,157,238,154.91
  5. Step 5: Solve for x
    x = 13,157,238,154.91/125,518.40
  6. Step 6: Final answer
    x = 104,823.18

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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.