Home / 112,948.28-169,421.45-28,708.68

Finding the Fourth Proportional to 112,948.28, 169,421.45 and 28,708.68

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Solution

The fourth proportional to 112,948.28, 169,421.45 and 28,708.68 is: 43,062.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,948.28 : 169,421.45 = 28,708.68 : x
  2. Step 2: Convert to fraction form
    112,948.28/169,421.45 = 28,708.68/x
  3. Step 3: Cross multiply
    112,948.28x = 169,421.45 × 28,708.68
  4. Step 4: Simplify right side
    112,948.28x = 4,863,866,049.64
  5. Step 5: Solve for x
    x = 4,863,866,049.64/112,948.28
  6. Step 6: Final answer
    x = 43,062.77

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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.