Home / 144,057.16-198,808.86-80,407.36

Finding the Fourth Proportional to 144,057.16, 198,808.86 and 80,407.36

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Solution

The fourth proportional to 144,057.16, 198,808.86 and 80,407.36 is: 110,967.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,057.16 : 198,808.86 = 80,407.36 : x
  2. Step 2: Convert to fraction form
    144,057.16/198,808.86 = 80,407.36/x
  3. Step 3: Cross multiply
    144,057.16x = 198,808.86 × 80,407.36
  4. Step 4: Simplify right side
    144,057.16x = 15,985,695,577.21
  5. Step 5: Solve for x
    x = 15,985,695,577.21/144,057.16
  6. Step 6: Final answer
    x = 110,967.73

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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.