Home / 125,820.27-173,636.76-72,115.65

Finding the Fourth Proportional to 125,820.27, 173,636.76 and 72,115.65

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Solution

The fourth proportional to 125,820.27, 173,636.76 and 72,115.65 is: 99,522.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,820.27 : 173,636.76 = 72,115.65 : x
  2. Step 2: Convert to fraction form
    125,820.27/173,636.76 = 72,115.65/x
  3. Step 3: Cross multiply
    125,820.27x = 173,636.76 × 72,115.65
  4. Step 4: Simplify right side
    125,820.27x = 12,521,928,081.73
  5. Step 5: Solve for x
    x = 12,521,928,081.73/125,820.27
  6. Step 6: Final answer
    x = 99,522.34

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1.5x scale

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.