Home / 125,825.24-173,639.42-72,113.43

Finding the Fourth Proportional to 125,825.24, 173,639.42 and 72,113.43

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Solution

The fourth proportional to 125,825.24, 173,639.42 and 72,113.43 is: 99,516.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,825.24 : 173,639.42 = 72,113.43 : x
  2. Step 2: Convert to fraction form
    125,825.24/173,639.42 = 72,113.43/x
  3. Step 3: Cross multiply
    125,825.24x = 173,639.42 × 72,113.43
  4. Step 4: Simplify right side
    125,825.24x = 12,521,734,159.41
  5. Step 5: Solve for x
    x = 12,521,734,159.41/125,825.24
  6. Step 6: Final answer
    x = 99,516.87

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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.