Home / 124,786.18-172,235.53-71,102.86

Finding the Fourth Proportional to 124,786.18, 172,235.53 and 71,102.86

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Solution

The fourth proportional to 124,786.18, 172,235.53 and 71,102.86 is: 98,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,786.18 : 172,235.53 = 71,102.86 : x
  2. Step 2: Convert to fraction form
    124,786.18/172,235.53 = 71,102.86/x
  3. Step 3: Cross multiply
    124,786.18x = 172,235.53 × 71,102.86
  4. Step 4: Simplify right side
    124,786.18x = 12,246,438,776.62
  5. Step 5: Solve for x
    x = 12,246,438,776.62/124,786.18
  6. Step 6: Final answer
    x = 98,139.38

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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.