Home / 126,395.55-189,377.53-69,517.07

Finding the Fourth Proportional to 126,395.55, 189,377.53 and 69,517.07

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Solution

The fourth proportional to 126,395.55, 189,377.53 and 69,517.07 is: 104,156.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,395.55 : 189,377.53 = 69,517.07 : x
  2. Step 2: Convert to fraction form
    126,395.55/189,377.53 = 69,517.07/x
  3. Step 3: Cross multiply
    126,395.55x = 189,377.53 × 69,517.07
  4. Step 4: Simplify right side
    126,395.55x = 13,164,970,457.33
  5. Step 5: Solve for x
    x = 13,164,970,457.33/126,395.55
  6. Step 6: Final answer
    x = 104,156.91

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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.