Home / 126,021.38-173,909.40-69,432.76

Finding the Fourth Proportional to 126,021.38, 173,909.40 and 69,432.76

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Solution

The fourth proportional to 126,021.38, 173,909.40 and 69,432.76 is: 95,817.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,021.38 : 173,909.40 = 69,432.76 : x
  2. Step 2: Convert to fraction form
    126,021.38/173,909.40 = 69,432.76/x
  3. Step 3: Cross multiply
    126,021.38x = 173,909.40 × 69,432.76
  4. Step 4: Simplify right side
    126,021.38x = 12,075,009,631.94
  5. Step 5: Solve for x
    x = 12,075,009,631.94/126,021.38
  6. Step 6: Final answer
    x = 95,817.15

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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.