Home / 112,961.56-169,332.17-53,781.34

Finding the Fourth Proportional to 112,961.56, 169,332.17 and 53,781.34

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Solution

The fourth proportional to 112,961.56, 169,332.17 and 53,781.34 is: 80,619.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,961.56 : 169,332.17 = 53,781.34 : x
  2. Step 2: Convert to fraction form
    112,961.56/169,332.17 = 53,781.34/x
  3. Step 3: Cross multiply
    112,961.56x = 169,332.17 × 53,781.34
  4. Step 4: Simplify right side
    112,961.56x = 9,106,911,007.71
  5. Step 5: Solve for x
    x = 9,106,911,007.71/112,961.56
  6. Step 6: Final answer
    x = 80,619.56

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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.