Home / 124,771.75-172,184.79-71,056.78

Finding the Fourth Proportional to 124,771.75, 172,184.79 and 71,056.78

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Solution

The fourth proportional to 124,771.75, 172,184.79 and 71,056.78 is: 98,058.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,771.75 : 172,184.79 = 71,056.78 : x
  2. Step 2: Convert to fraction form
    124,771.75/172,184.79 = 71,056.78/x
  3. Step 3: Cross multiply
    124,771.75x = 172,184.79 × 71,056.78
  4. Step 4: Simplify right side
    124,771.75x = 12,234,896,742.38
  5. Step 5: Solve for x
    x = 12,234,896,742.38/124,771.75
  6. Step 6: Final answer
    x = 98,058.23

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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.