Home / 123,764.10-185,646.15-64,617.90

Finding the Fourth Proportional to 123,764.10, 185,646.15 and 64,617.90

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Solution

The fourth proportional to 123,764.10, 185,646.15 and 64,617.90 is: 96,926.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,764.10 : 185,646.15 = 64,617.90 : x
  2. Step 2: Convert to fraction form
    123,764.10/185,646.15 = 64,617.90/x
  3. Step 3: Cross multiply
    123,764.10x = 185,646.15 × 64,617.90
  4. Step 4: Simplify right side
    123,764.10x = 11,996,064,356.09
  5. Step 5: Solve for x
    x = 11,996,064,356.09/123,764.10
  6. Step 6: Final answer
    x = 96,926.85

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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.