Home / 104,055.20-156,082.80-80,727.20

Finding the Fourth Proportional to 104,055.20, 156,082.80 and 80,727.20

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Solution

The fourth proportional to 104,055.20, 156,082.80 and 80,727.20 is: 121,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,055.20 : 156,082.80 = 80,727.20 : x
  2. Step 2: Convert to fraction form
    104,055.20/156,082.80 = 80,727.20/x
  3. Step 3: Cross multiply
    104,055.20x = 156,082.80 × 80,727.20
  4. Step 4: Simplify right side
    104,055.20x = 12,600,127,412.16
  5. Step 5: Solve for x
    x = 12,600,127,412.16/104,055.20
  6. Step 6: Final answer
    x = 121,090.80

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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.