Home / 177,538.40-266,080.80-72,238.40

Finding the Fourth Proportional to 177,538.40, 266,080.80 and 72,238.40

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Solution

The fourth proportional to 177,538.40, 266,080.80 and 72,238.40 is: 108,265.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,538.40 : 266,080.80 = 72,238.40 : x
  2. Step 2: Convert to fraction form
    177,538.40/266,080.80 = 72,238.40/x
  3. Step 3: Cross multiply
    177,538.40x = 266,080.80 × 72,238.40
  4. Step 4: Simplify right side
    177,538.40x = 19,221,251,262.72
  5. Step 5: Solve for x
    x = 19,221,251,262.72/177,538.40
  6. Step 6: Final answer
    x = 108,265.32

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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.