Home / 108,916.20-163,374.30-99,074.70

Finding the Fourth Proportional to 108,916.20, 163,374.30 and 99,074.70

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Solution

The fourth proportional to 108,916.20, 163,374.30 and 99,074.70 is: 148,612.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,916.20 : 163,374.30 = 99,074.70 : x
  2. Step 2: Convert to fraction form
    108,916.20/163,374.30 = 99,074.70/x
  3. Step 3: Cross multiply
    108,916.20x = 163,374.30 × 99,074.70
  4. Step 4: Simplify right side
    108,916.20x = 16,186,259,760.21
  5. Step 5: Solve for x
    x = 16,186,259,760.21/108,916.20
  6. Step 6: Final answer
    x = 148,612.05

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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.