Home / 120,917.60-181,409.04-42,036.20

Finding the Fourth Proportional to 120,917.60, 181,409.04 and 42,036.20

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Solution

The fourth proportional to 120,917.60, 181,409.04 and 42,036.20 is: 63,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,917.60 : 181,409.04 = 42,036.20 : x
  2. Step 2: Convert to fraction form
    120,917.60/181,409.04 = 42,036.20/x
  3. Step 3: Cross multiply
    120,917.60x = 181,409.04 × 42,036.20
  4. Step 4: Simplify right side
    120,917.60x = 7,625,746,687.25
  5. Step 5: Solve for x
    x = 7,625,746,687.25/120,917.60
  6. Step 6: Final answer
    x = 63,065.65

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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.