Home / 124,711.10-187,066.65-45,881.90

Finding the Fourth Proportional to 124,711.10, 187,066.65 and 45,881.90

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Solution

The fourth proportional to 124,711.10, 187,066.65 and 45,881.90 is: 68,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,711.10 : 187,066.65 = 45,881.90 : x
  2. Step 2: Convert to fraction form
    124,711.10/187,066.65 = 45,881.90/x
  3. Step 3: Cross multiply
    124,711.10x = 187,066.65 × 45,881.90
  4. Step 4: Simplify right side
    124,711.10x = 8,582,973,328.64
  5. Step 5: Solve for x
    x = 8,582,973,328.64/124,711.10
  6. Step 6: Final answer
    x = 68,822.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.