Home / 123,553.20-170,503.32-66,964.56

Finding the Fourth Proportional to 123,553.20, 170,503.32 and 66,964.56

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Solution

The fourth proportional to 123,553.20, 170,503.32 and 66,964.56 is: 92,411.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,553.20 : 170,503.32 = 66,964.56 : x
  2. Step 2: Convert to fraction form
    123,553.20/170,503.32 = 66,964.56/x
  3. Step 3: Cross multiply
    123,553.20x = 170,503.32 × 66,964.56
  4. Step 4: Simplify right side
    123,553.20x = 11,417,679,802.34
  5. Step 5: Solve for x
    x = 11,417,679,802.34/123,553.20
  6. Step 6: Final answer
    x = 92,411.04

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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.