Home / 125,011.87-172,515.72-67,651.16

Finding the Fourth Proportional to 125,011.87, 172,515.72 and 67,651.16

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Solution

The fourth proportional to 125,011.87, 172,515.72 and 67,651.16 is: 93,358.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,011.87 : 172,515.72 = 67,651.16 : x
  2. Step 2: Convert to fraction form
    125,011.87/172,515.72 = 67,651.16/x
  3. Step 3: Cross multiply
    125,011.87x = 172,515.72 × 67,651.16
  4. Step 4: Simplify right side
    125,011.87x = 11,670,887,713.66
  5. Step 5: Solve for x
    x = 11,670,887,713.66/125,011.87
  6. Step 6: Final answer
    x = 93,358.24

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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.