Home / 156,085.16-215,397.52-84,465.18

Finding the Fourth Proportional to 156,085.16, 215,397.52 and 84,465.18

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Solution

The fourth proportional to 156,085.16, 215,397.52 and 84,465.18 is: 116,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,085.16 : 215,397.52 = 84,465.18 : x
  2. Step 2: Convert to fraction form
    156,085.16/215,397.52 = 84,465.18/x
  3. Step 3: Cross multiply
    156,085.16x = 215,397.52 × 84,465.18
  4. Step 4: Simplify right side
    156,085.16x = 18,193,591,108.72
  5. Step 5: Solve for x
    x = 18,193,591,108.72/156,085.16
  6. Step 6: Final answer
    x = 116,561.95

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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.