Home / 115,280.80-172,575.60-108,445.60

Finding the Fourth Proportional to 115,280.80, 172,575.60 and 108,445.60

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Solution

The fourth proportional to 115,280.80, 172,575.60 and 108,445.60 is: 162,343.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,280.80 : 172,575.60 = 108,445.60 : x
  2. Step 2: Convert to fraction form
    115,280.80/172,575.60 = 108,445.60/x
  3. Step 3: Cross multiply
    115,280.80x = 172,575.60 × 108,445.60
  4. Step 4: Simplify right side
    115,280.80x = 18,715,064,487.36
  5. Step 5: Solve for x
    x = 18,715,064,487.36/115,280.80
  6. Step 6: Final answer
    x = 162,343.29

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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.