Home / 125,819.19-173,632.41-72,108.90

Finding the Fourth Proportional to 125,819.19, 173,632.41 and 72,108.90

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Solution

The fourth proportional to 125,819.19, 173,632.41 and 72,108.90 is: 99,511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,819.19 : 173,632.41 = 72,108.90 : x
  2. Step 2: Convert to fraction form
    125,819.19/173,632.41 = 72,108.90/x
  3. Step 3: Cross multiply
    125,819.19x = 173,632.41 × 72,108.90
  4. Step 4: Simplify right side
    125,819.19x = 12,520,442,089.45
  5. Step 5: Solve for x
    x = 12,520,442,089.45/125,819.19
  6. Step 6: Final answer
    x = 99,511.39

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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.