Home / 125,972.95-173,836.11-78,225.27

Finding the Fourth Proportional to 125,972.95, 173,836.11 and 78,225.27

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Solution

The fourth proportional to 125,972.95, 173,836.11 and 78,225.27 is: 107,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,972.95 : 173,836.11 = 78,225.27 : x
  2. Step 2: Convert to fraction form
    125,972.95/173,836.11 = 78,225.27/x
  3. Step 3: Cross multiply
    125,972.95x = 173,836.11 × 78,225.27
  4. Step 4: Simplify right side
    125,972.95x = 13,598,376,640.50
  5. Step 5: Solve for x
    x = 13,598,376,640.50/125,972.95
  6. Step 6: Final answer
    x = 107,946.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.