Home / 112,403.28-168,687.92-53,238.92

Finding the Fourth Proportional to 112,403.28, 168,687.92 and 53,238.92

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Solution

The fourth proportional to 112,403.28, 168,687.92 and 53,238.92 is: 79,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,403.28 : 168,687.92 = 53,238.92 : x
  2. Step 2: Convert to fraction form
    112,403.28/168,687.92 = 53,238.92/x
  3. Step 3: Cross multiply
    112,403.28x = 168,687.92 × 53,238.92
  4. Step 4: Simplify right side
    112,403.28x = 8,980,762,677.85
  5. Step 5: Solve for x
    x = 8,980,762,677.85/112,403.28
  6. Step 6: Final answer
    x = 79,897.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.