Home / 124,784.28-172,220.13-71,074.28

Finding the Fourth Proportional to 124,784.28, 172,220.13 and 71,074.28

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Solution

The fourth proportional to 124,784.28, 172,220.13 and 71,074.28 is: 98,092.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,784.28 : 172,220.13 = 71,074.28 : x
  2. Step 2: Convert to fraction form
    124,784.28/172,220.13 = 71,074.28/x
  3. Step 3: Cross multiply
    124,784.28x = 172,220.13 × 71,074.28
  4. Step 4: Simplify right side
    124,784.28x = 12,240,422,171.81
  5. Step 5: Solve for x
    x = 12,240,422,171.81/124,784.28
  6. Step 6: Final answer
    x = 98,092.66

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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.