Home / 125,825.49-173,639.76-72,113.68

Finding the Fourth Proportional to 125,825.49, 173,639.76 and 72,113.68

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Solution

The fourth proportional to 125,825.49, 173,639.76 and 72,113.68 is: 99,517.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,825.49 : 173,639.76 = 72,113.68 : x
  2. Step 2: Convert to fraction form
    125,825.49/173,639.76 = 72,113.68/x
  3. Step 3: Cross multiply
    125,825.49x = 173,639.76 × 72,113.68
  4. Step 4: Simplify right side
    125,825.49x = 12,521,802,087.92
  5. Step 5: Solve for x
    x = 12,521,802,087.92/125,825.49
  6. Step 6: Final answer
    x = 99,517.21

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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.