Home / 156,701.52-216,246.24-85,081.32

Finding the Fourth Proportional to 156,701.52, 216,246.24 and 85,081.32

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Solution

The fourth proportional to 156,701.52, 216,246.24 and 85,081.32 is: 117,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,701.52 : 216,246.24 = 85,081.32 : x
  2. Step 2: Convert to fraction form
    156,701.52/216,246.24 = 85,081.32/x
  3. Step 3: Cross multiply
    156,701.52x = 216,246.24 × 85,081.32
  4. Step 4: Simplify right side
    156,701.52x = 18,398,515,544.24
  5. Step 5: Solve for x
    x = 18,398,515,544.24/156,701.52
  6. Step 6: Final answer
    x = 117,411.21

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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.