Home / 156,424.29-215,862.71-88,440.09

Finding the Fourth Proportional to 156,424.29, 215,862.71 and 88,440.09

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Solution

The fourth proportional to 156,424.29, 215,862.71 and 88,440.09 is: 122,045.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,424.29 : 215,862.71 = 88,440.09 : x
  2. Step 2: Convert to fraction form
    156,424.29/215,862.71 = 88,440.09/x
  3. Step 3: Cross multiply
    156,424.29x = 215,862.71 × 88,440.09
  4. Step 4: Simplify right side
    156,424.29x = 19,090,917,057.84
  5. Step 5: Solve for x
    x = 19,090,917,057.84/156,424.29
  6. Step 6: Final answer
    x = 122,045.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.