Home / 131,842.28-181,942.39-71,412.74

Finding the Fourth Proportional to 131,842.28, 181,942.39 and 71,412.74

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Solution

The fourth proportional to 131,842.28, 181,942.39 and 71,412.74 is: 98,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,842.28 : 181,942.39 = 71,412.74 : x
  2. Step 2: Convert to fraction form
    131,842.28/181,942.39 = 71,412.74/x
  3. Step 3: Cross multiply
    131,842.28x = 181,942.39 × 71,412.74
  4. Step 4: Simplify right side
    131,842.28x = 12,993,004,052.19
  5. Step 5: Solve for x
    x = 12,993,004,052.19/131,842.28
  6. Step 6: Final answer
    x = 98,549.60

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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.