Home / 123,764.64-185,617.20-57,140.76

Finding the Fourth Proportional to 123,764.64, 185,617.20 and 57,140.76

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Solution

The fourth proportional to 123,764.64, 185,617.20 and 57,140.76 is: 85,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,764.64 : 185,617.20 = 57,140.76 : x
  2. Step 2: Convert to fraction form
    123,764.64/185,617.20 = 57,140.76/x
  3. Step 3: Cross multiply
    123,764.64x = 185,617.20 × 57,140.76
  4. Step 4: Simplify right side
    123,764.64x = 10,606,307,877.07
  5. Step 5: Solve for x
    x = 10,606,307,877.07/123,764.64
  6. Step 6: Final answer
    x = 85,697.40

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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.