Home / 126,451.89-189,677.77-70,265.12

Finding the Fourth Proportional to 126,451.89, 189,677.77 and 70,265.12

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Solution

The fourth proportional to 126,451.89, 189,677.77 and 70,265.12 is: 105,397.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,451.89 : 189,677.77 = 70,265.12 : x
  2. Step 2: Convert to fraction form
    126,451.89/189,677.77 = 70,265.12/x
  3. Step 3: Cross multiply
    126,451.89x = 189,677.77 × 70,265.12
  4. Step 4: Simplify right side
    126,451.89x = 13,327,730,146.33
  5. Step 5: Solve for x
    x = 13,327,730,146.33/126,451.89
  6. Step 6: Final answer
    x = 105,397.63

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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.