Home / 177,328.80-266,090.40-72,223.20

Finding the Fourth Proportional to 177,328.80, 266,090.40 and 72,223.20

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Solution

The fourth proportional to 177,328.80, 266,090.40 and 72,223.20 is: 108,374.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,328.80 : 266,090.40 = 72,223.20 : x
  2. Step 2: Convert to fraction form
    177,328.80/266,090.40 = 72,223.20/x
  3. Step 3: Cross multiply
    177,328.80x = 266,090.40 × 72,223.20
  4. Step 4: Simplify right side
    177,328.80x = 19,217,900,177.28
  5. Step 5: Solve for x
    x = 19,217,900,177.28/177,328.80
  6. Step 6: Final answer
    x = 108,374.39

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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.