Home / 126,158.48-189,023.50-76,133.46

Finding the Fourth Proportional to 126,158.48, 189,023.50 and 76,133.46

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Solution

The fourth proportional to 126,158.48, 189,023.50 and 76,133.46 is: 114,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,158.48 : 189,023.50 = 76,133.46 : x
  2. Step 2: Convert to fraction form
    126,158.48/189,023.50 = 76,133.46/x
  3. Step 3: Cross multiply
    126,158.48x = 189,023.50 × 76,133.46
  4. Step 4: Simplify right side
    126,158.48x = 14,391,013,076.31
  5. Step 5: Solve for x
    x = 14,391,013,076.31/126,158.48
  6. Step 6: Final answer
    x = 114,070.91

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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.