Home / 125,530.08-173,229.60-71,828.28

Finding the Fourth Proportional to 125,530.08, 173,229.60 and 71,828.28

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Solution

The fourth proportional to 125,530.08, 173,229.60 and 71,828.28 is: 99,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,530.08 : 173,229.60 = 71,828.28 : x
  2. Step 2: Convert to fraction form
    125,530.08/173,229.60 = 71,828.28/x
  3. Step 3: Cross multiply
    125,530.08x = 173,229.60 × 71,828.28
  4. Step 4: Simplify right side
    125,530.08x = 12,442,784,213.09
  5. Step 5: Solve for x
    x = 12,442,784,213.09/125,530.08
  6. Step 6: Final answer
    x = 99,121.93

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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.