Home / 108,391.80-149,515.20-71,598.24

Finding the Fourth Proportional to 108,391.80, 149,515.20 and 71,598.24

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Solution

The fourth proportional to 108,391.80, 149,515.20 and 71,598.24 is: 98,762.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,391.80 : 149,515.20 = 71,598.24 : x
  2. Step 2: Convert to fraction form
    108,391.80/149,515.20 = 71,598.24/x
  3. Step 3: Cross multiply
    108,391.80x = 149,515.20 × 71,598.24
  4. Step 4: Simplify right side
    108,391.80x = 10,705,025,173.25
  5. Step 5: Solve for x
    x = 10,705,025,173.25/108,391.80
  6. Step 6: Final answer
    x = 98,762.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.