Home / 103,734.80-155,602.20-92,581.10

Finding the Fourth Proportional to 103,734.80, 155,602.20 and 92,581.10

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Solution

The fourth proportional to 103,734.80, 155,602.20 and 92,581.10 is: 138,871.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,734.80 : 155,602.20 = 92,581.10 : x
  2. Step 2: Convert to fraction form
    103,734.80/155,602.20 = 92,581.10/x
  3. Step 3: Cross multiply
    103,734.80x = 155,602.20 × 92,581.10
  4. Step 4: Simplify right side
    103,734.80x = 14,405,822,838.42
  5. Step 5: Solve for x
    x = 14,405,822,838.42/103,734.80
  6. Step 6: Final answer
    x = 138,871.65

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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.