Home / 156,276.68-215,661.29-84,656.61

Finding the Fourth Proportional to 156,276.68, 215,661.29 and 84,656.61

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Solution

The fourth proportional to 156,276.68, 215,661.29 and 84,656.61 is: 116,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,276.68 : 215,661.29 = 84,656.61 : x
  2. Step 2: Convert to fraction form
    156,276.68/215,661.29 = 84,656.61/x
  3. Step 3: Cross multiply
    156,276.68x = 215,661.29 × 84,656.61
  4. Step 4: Simplify right side
    156,276.68x = 18,257,153,296.34
  5. Step 5: Solve for x
    x = 18,257,153,296.34/156,276.68
  6. Step 6: Final answer
    x = 116,825.84

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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.