Home / 112,071.60-168,301.80-108,572.40

Finding the Fourth Proportional to 112,071.60, 168,301.80 and 108,572.40

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Solution

The fourth proportional to 112,071.60, 168,301.80 and 108,572.40 is: 163,046.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,071.60 : 168,301.80 = 108,572.40 : x
  2. Step 2: Convert to fraction form
    112,071.60/168,301.80 = 108,572.40/x
  3. Step 3: Cross multiply
    112,071.60x = 168,301.80 × 108,572.40
  4. Step 4: Simplify right side
    112,071.60x = 18,272,930,350.32
  5. Step 5: Solve for x
    x = 18,272,930,350.32/112,071.60
  6. Step 6: Final answer
    x = 163,046.93

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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.