Home / 156,332.90-215,739.60-84,712.92

Finding the Fourth Proportional to 156,332.90, 215,739.60 and 84,712.92

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Solution

The fourth proportional to 156,332.90, 215,739.60 and 84,712.92 is: 116,903.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,332.90 : 215,739.60 = 84,712.92 : x
  2. Step 2: Convert to fraction form
    156,332.90/215,739.60 = 84,712.92/x
  3. Step 3: Cross multiply
    156,332.90x = 215,739.60 × 84,712.92
  4. Step 4: Simplify right side
    156,332.90x = 18,275,931,475.63
  5. Step 5: Solve for x
    x = 18,275,931,475.63/156,332.90
  6. Step 6: Final answer
    x = 116,903.94

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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.