Home / 242,555.40-363,816.09-90,723.60

Finding the Fourth Proportional to 242,555.40, 363,816.09 and 90,723.60

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Solution

The fourth proportional to 242,555.40, 363,816.09 and 90,723.60 is: 136,079.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,555.40 : 363,816.09 = 90,723.60 : x
  2. Step 2: Convert to fraction form
    242,555.40/363,816.09 = 90,723.60/x
  3. Step 3: Cross multiply
    242,555.40x = 363,816.09 × 90,723.60
  4. Step 4: Simplify right side
    242,555.40x = 33,006,705,422.72
  5. Step 5: Solve for x
    x = 33,006,705,422.72/242,555.40
  6. Step 6: Final answer
    x = 136,079.04

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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.