Home / 121,503.30-182,215.32-57,455.10

Finding the Fourth Proportional to 121,503.30, 182,215.32 and 57,455.10

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Solution

The fourth proportional to 121,503.30, 182,215.32 and 57,455.10 is: 86,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,503.30 : 182,215.32 = 57,455.10 : x
  2. Step 2: Convert to fraction form
    121,503.30/182,215.32 = 57,455.10/x
  3. Step 3: Cross multiply
    121,503.30x = 182,215.32 × 57,455.10
  4. Step 4: Simplify right side
    121,503.30x = 10,469,199,432.13
  5. Step 5: Solve for x
    x = 10,469,199,432.13/121,503.30
  6. Step 6: Final answer
    x = 86,163.91

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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.