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Finding the Fourth Proportional to 120,882.51, 181,276.74 and 40,899.06

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Solution

The fourth proportional to 120,882.51, 181,276.74 and 40,899.06 is: 61,332.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,882.51 : 181,276.74 = 40,899.06 : x
  2. Step 2: Convert to fraction form
    120,882.51/181,276.74 = 40,899.06/x
  3. Step 3: Cross multiply
    120,882.51x = 181,276.74 × 40,899.06
  4. Step 4: Simplify right side
    120,882.51x = 7,414,048,265.86
  5. Step 5: Solve for x
    x = 7,414,048,265.86/120,882.51
  6. Step 6: Final answer
    x = 61,332.68

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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.