Home / 125,862.32-173,682.84-72,135.92

Finding the Fourth Proportional to 125,862.32, 173,682.84 and 72,135.92

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Solution

The fourth proportional to 125,862.32, 173,682.84 and 72,135.92 is: 99,543.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,862.32 : 173,682.84 = 72,135.92 : x
  2. Step 2: Convert to fraction form
    125,862.32/173,682.84 = 72,135.92/x
  3. Step 3: Cross multiply
    125,862.32x = 173,682.84 × 72,135.92
  4. Step 4: Simplify right side
    125,862.32x = 12,528,771,451.61
  5. Step 5: Solve for x
    x = 12,528,771,451.61/125,862.32
  6. Step 6: Final answer
    x = 99,543.47

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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.