Home / 218,742.80-327,934.20-98,807.60

Finding the Fourth Proportional to 218,742.80, 327,934.20 and 98,807.60

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Solution

The fourth proportional to 218,742.80, 327,934.20 and 98,807.60 is: 148,130.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,742.80 : 327,934.20 = 98,807.60 : x
  2. Step 2: Convert to fraction form
    218,742.80/327,934.20 = 98,807.60/x
  3. Step 3: Cross multiply
    218,742.80x = 327,934.20 × 98,807.60
  4. Step 4: Simplify right side
    218,742.80x = 32,402,391,259.92
  5. Step 5: Solve for x
    x = 32,402,391,259.92/218,742.80
  6. Step 6: Final answer
    x = 148,130.09

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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.