Home / 125,172.45-172,737.22-67,812.85

Finding the Fourth Proportional to 125,172.45, 172,737.22 and 67,812.85

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Solution

The fourth proportional to 125,172.45, 172,737.22 and 67,812.85 is: 93,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,172.45 : 172,737.22 = 67,812.85 : x
  2. Step 2: Convert to fraction form
    125,172.45/172,737.22 = 67,812.85/x
  3. Step 3: Cross multiply
    125,172.45x = 172,737.22 × 67,812.85
  4. Step 4: Simplify right side
    125,172.45x = 11,713,803,189.28
  5. Step 5: Solve for x
    x = 11,713,803,189.28/125,172.45
  6. Step 6: Final answer
    x = 93,581.32

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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.