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Finding the Fourth Proportional to 108,407.50, 162,610.32 and 84,734.95

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Solution

The fourth proportional to 108,407.50, 162,610.32 and 84,734.95 is: 127,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,407.50 : 162,610.32 = 84,734.95 : x
  2. Step 2: Convert to fraction form
    108,407.50/162,610.32 = 84,734.95/x
  3. Step 3: Cross multiply
    108,407.50x = 162,610.32 × 84,734.95
  4. Step 4: Simplify right side
    108,407.50x = 13,778,776,521.63
  5. Step 5: Solve for x
    x = 13,778,776,521.63/108,407.50
  6. Step 6: Final answer
    x = 127,101.70

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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.