Home / 115,931.10-173,896.65-56,775.90

Finding the Fourth Proportional to 115,931.10, 173,896.65 and 56,775.90

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Solution

The fourth proportional to 115,931.10, 173,896.65 and 56,775.90 is: 85,163.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,931.10 : 173,896.65 = 56,775.90 : x
  2. Step 2: Convert to fraction form
    115,931.10/173,896.65 = 56,775.90/x
  3. Step 3: Cross multiply
    115,931.10x = 173,896.65 × 56,775.90
  4. Step 4: Simplify right side
    115,931.10x = 9,873,138,810.74
  5. Step 5: Solve for x
    x = 9,873,138,810.74/115,931.10
  6. Step 6: Final answer
    x = 85,163.85

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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.