Home / 112,765.20-169,047.04-42,693.72

Finding the Fourth Proportional to 112,765.20, 169,047.04 and 42,693.72

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Solution

The fourth proportional to 112,765.20, 169,047.04 and 42,693.72 is: 64,002.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,765.20 : 169,047.04 = 42,693.72 : x
  2. Step 2: Convert to fraction form
    112,765.20/169,047.04 = 42,693.72/x
  3. Step 3: Cross multiply
    112,765.20x = 169,047.04 × 42,693.72
  4. Step 4: Simplify right side
    112,765.20x = 7,217,246,992.59
  5. Step 5: Solve for x
    x = 7,217,246,992.59/112,765.20
  6. Step 6: Final answer
    x = 64,002.43

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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.