Home / 131,378.62-181,302.49-70,949.27

Finding the Fourth Proportional to 131,378.62, 181,302.49 and 70,949.27

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Solution

The fourth proportional to 131,378.62, 181,302.49 and 70,949.27 is: 97,909.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,378.62 : 181,302.49 = 70,949.27 : x
  2. Step 2: Convert to fraction form
    131,378.62/181,302.49 = 70,949.27/x
  3. Step 3: Cross multiply
    131,378.62x = 181,302.49 × 70,949.27
  4. Step 4: Simplify right side
    131,378.62x = 12,863,278,053.42
  5. Step 5: Solve for x
    x = 12,863,278,053.42/131,378.62
  6. Step 6: Final answer
    x = 97,909.98

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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.