Home / 125,756.46-173,456.04-85,400.17

Finding the Fourth Proportional to 125,756.46, 173,456.04 and 85,400.17

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Solution

The fourth proportional to 125,756.46, 173,456.04 and 85,400.17 is: 117,792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,756.46 : 173,456.04 = 85,400.17 : x
  2. Step 2: Convert to fraction form
    125,756.46/173,456.04 = 85,400.17/x
  3. Step 3: Cross multiply
    125,756.46x = 173,456.04 × 85,400.17
  4. Step 4: Simplify right side
    125,756.46x = 14,813,174,222.75
  5. Step 5: Solve for x
    x = 14,813,174,222.75/125,756.46
  6. Step 6: Final answer
    x = 117,792.55

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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.