Home / 125,690.90-173,490.83-72,011.66

Finding the Fourth Proportional to 125,690.90, 173,490.83 and 72,011.66

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Solution

The fourth proportional to 125,690.90, 173,490.83 and 72,011.66 is: 99,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,690.90 : 173,490.83 = 72,011.66 : x
  2. Step 2: Convert to fraction form
    125,690.90/173,490.83 = 72,011.66/x
  3. Step 3: Cross multiply
    125,690.90x = 173,490.83 × 72,011.66
  4. Step 4: Simplify right side
    125,690.90x = 12,493,361,435.57
  5. Step 5: Solve for x
    x = 12,493,361,435.57/125,690.90
  6. Step 6: Final answer
    x = 99,397.51

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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.