Home / 125,023.32-172,352.84-89,151.12

Finding the Fourth Proportional to 125,023.32, 172,352.84 and 89,151.12

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Solution

The fourth proportional to 125,023.32, 172,352.84 and 89,151.12 is: 122,900.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,023.32 : 172,352.84 = 89,151.12 : x
  2. Step 2: Convert to fraction form
    125,023.32/172,352.84 = 89,151.12/x
  3. Step 3: Cross multiply
    125,023.32x = 172,352.84 × 89,151.12
  4. Step 4: Simplify right side
    125,023.32x = 15,365,448,275.43
  5. Step 5: Solve for x
    x = 15,365,448,275.43/125,023.32
  6. Step 6: Final answer
    x = 122,900.66

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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.