Home / 103,432.05-155,126.30-47,256.21

Finding the Fourth Proportional to 103,432.05, 155,126.30 and 47,256.21

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Solution

The fourth proportional to 103,432.05, 155,126.30 and 47,256.21 is: 70,874.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,432.05 : 155,126.30 = 47,256.21 : x
  2. Step 2: Convert to fraction form
    103,432.05/155,126.30 = 47,256.21/x
  3. Step 3: Cross multiply
    103,432.05x = 155,126.30 × 47,256.21
  4. Step 4: Simplify right side
    103,432.05x = 7,330,680,773.04
  5. Step 5: Solve for x
    x = 7,330,680,773.04/103,432.05
  6. Step 6: Final answer
    x = 70,874.36

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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.