Home / 125,789.28-173,590.64-72,073.20

Finding the Fourth Proportional to 125,789.28, 173,590.64 and 72,073.20

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Solution

The fourth proportional to 125,789.28, 173,590.64 and 72,073.20 is: 99,461.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,789.28 : 173,590.64 = 72,073.20 : x
  2. Step 2: Convert to fraction form
    125,789.28/173,590.64 = 72,073.20/x
  3. Step 3: Cross multiply
    125,789.28x = 173,590.64 × 72,073.20
  4. Step 4: Simplify right side
    125,789.28x = 12,511,232,914.85
  5. Step 5: Solve for x
    x = 12,511,232,914.85/125,789.28
  6. Step 6: Final answer
    x = 99,461.84

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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.