Home / 108,749.40-162,929.70-88,920.60

Finding the Fourth Proportional to 108,749.40, 162,929.70 and 88,920.60

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Solution

The fourth proportional to 108,749.40, 162,929.70 and 88,920.60 is: 133,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,749.40 : 162,929.70 = 88,920.60 : x
  2. Step 2: Convert to fraction form
    108,749.40/162,929.70 = 88,920.60/x
  3. Step 3: Cross multiply
    108,749.40x = 162,929.70 × 88,920.60
  4. Step 4: Simplify right side
    108,749.40x = 14,487,806,681.82
  5. Step 5: Solve for x
    x = 14,487,806,681.82/108,749.40
  6. Step 6: Final answer
    x = 133,221.95

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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.