Home / 120,674.12-181,098.72-84,900.20

Finding the Fourth Proportional to 120,674.12, 181,098.72 and 84,900.20

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Solution

The fourth proportional to 120,674.12, 181,098.72 and 84,900.20 is: 127,411.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,674.12 : 181,098.72 = 84,900.20 : x
  2. Step 2: Convert to fraction form
    120,674.12/181,098.72 = 84,900.20/x
  3. Step 3: Cross multiply
    120,674.12x = 181,098.72 × 84,900.20
  4. Step 4: Simplify right side
    120,674.12x = 15,375,317,547.74
  5. Step 5: Solve for x
    x = 15,375,317,547.74/120,674.12
  6. Step 6: Final answer
    x = 127,411.89

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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.