Home / 156,265.63-215,633.77-88,288.50

Finding the Fourth Proportional to 156,265.63, 215,633.77 and 88,288.50

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Solution

The fourth proportional to 156,265.63, 215,633.77 and 88,288.50 is: 121,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,265.63 : 215,633.77 = 88,288.50 : x
  2. Step 2: Convert to fraction form
    156,265.63/215,633.77 = 88,288.50/x
  3. Step 3: Cross multiply
    156,265.63x = 215,633.77 × 88,288.50
  4. Step 4: Simplify right side
    156,265.63x = 19,037,981,881.92
  5. Step 5: Solve for x
    x = 19,037,981,881.92/156,265.63
  6. Step 6: Final answer
    x = 121,830.90

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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.