Home / 126,126.65-189,184.50-31,354.85

Finding the Fourth Proportional to 126,126.65, 189,184.50 and 31,354.85

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Solution

The fourth proportional to 126,126.65, 189,184.50 and 31,354.85 is: 47,030.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,126.65 : 189,184.50 = 31,354.85 : x
  2. Step 2: Convert to fraction form
    126,126.65/189,184.50 = 31,354.85/x
  3. Step 3: Cross multiply
    126,126.65x = 189,184.50 × 31,354.85
  4. Step 4: Simplify right side
    126,126.65x = 5,931,850,673.90
  5. Step 5: Solve for x
    x = 5,931,850,673.90/126,126.65
  6. Step 6: Final answer
    x = 47,030.91

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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.