Home / 103,432.10-155,111.70-36,874.40

Finding the Fourth Proportional to 103,432.10, 155,111.70 and 36,874.40

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Solution

The fourth proportional to 103,432.10, 155,111.70 and 36,874.40 is: 55,298.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,432.10 : 155,111.70 = 36,874.40 : x
  2. Step 2: Convert to fraction form
    103,432.10/155,111.70 = 36,874.40/x
  3. Step 3: Cross multiply
    103,432.10x = 155,111.70 × 36,874.40
  4. Step 4: Simplify right side
    103,432.10x = 5,719,650,870.48
  5. Step 5: Solve for x
    x = 5,719,650,870.48/103,432.10
  6. Step 6: Final answer
    x = 55,298.61

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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.