Home / 125,215.18-187,822.77-75,863.50

Finding the Fourth Proportional to 125,215.18, 187,822.77 and 75,863.50

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Solution

The fourth proportional to 125,215.18, 187,822.77 and 75,863.50 is: 113,795.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,215.18 : 187,822.77 = 75,863.50 : x
  2. Step 2: Convert to fraction form
    125,215.18/187,822.77 = 75,863.50/x
  3. Step 3: Cross multiply
    125,215.18x = 187,822.77 × 75,863.50
  4. Step 4: Simplify right side
    125,215.18x = 14,248,892,711.90
  5. Step 5: Solve for x
    x = 14,248,892,711.90/125,215.18
  6. Step 6: Final answer
    x = 113,795.25

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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.