Home / 149,389.06-224,149.78-78,294.78

Finding the Fourth Proportional to 149,389.06, 224,149.78 and 78,294.78

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Solution

The fourth proportional to 149,389.06, 224,149.78 and 78,294.78 is: 117,476.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,389.06 : 224,149.78 = 78,294.78 : x
  2. Step 2: Convert to fraction form
    149,389.06/224,149.78 = 78,294.78/x
  3. Step 3: Cross multiply
    149,389.06x = 224,149.78 × 78,294.78
  4. Step 4: Simplify right side
    149,389.06x = 17,549,757,712.15
  5. Step 5: Solve for x
    x = 17,549,757,712.15/149,389.06
  6. Step 6: Final answer
    x = 117,476.86

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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.