Home / 115,543.20-173,314.80-40,747.80

Finding the Fourth Proportional to 115,543.20, 173,314.80 and 40,747.80

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Solution

The fourth proportional to 115,543.20, 173,314.80 and 40,747.80 is: 61,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,543.20 : 173,314.80 = 40,747.80 : x
  2. Step 2: Convert to fraction form
    115,543.20/173,314.80 = 40,747.80/x
  3. Step 3: Cross multiply
    115,543.20x = 173,314.80 × 40,747.80
  4. Step 4: Simplify right side
    115,543.20x = 7,062,196,807.44
  5. Step 5: Solve for x
    x = 7,062,196,807.44/115,543.20
  6. Step 6: Final answer
    x = 61,121.70

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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.