Home / 131,347.28-181,225.80-80,341.38

Finding the Fourth Proportional to 131,347.28, 181,225.80 and 80,341.38

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Solution

The fourth proportional to 131,347.28, 181,225.80 and 80,341.38 is: 110,850.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,347.28 : 181,225.80 = 80,341.38 : x
  2. Step 2: Convert to fraction form
    131,347.28/181,225.80 = 80,341.38/x
  3. Step 3: Cross multiply
    131,347.28x = 181,225.80 × 80,341.38
  4. Step 4: Simplify right side
    131,347.28x = 14,559,930,863.60
  5. Step 5: Solve for x
    x = 14,559,930,863.60/131,347.28
  6. Step 6: Final answer
    x = 110,850.64

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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.