Home / 177,318.80-266,075.40-72,213.20

Finding the Fourth Proportional to 177,318.80, 266,075.40 and 72,213.20

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Solution

The fourth proportional to 177,318.80, 266,075.40 and 72,213.20 is: 108,359.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,318.80 : 266,075.40 = 72,213.20 : x
  2. Step 2: Convert to fraction form
    177,318.80/266,075.40 = 72,213.20/x
  3. Step 3: Cross multiply
    177,318.80x = 266,075.40 × 72,213.20
  4. Step 4: Simplify right side
    177,318.80x = 19,214,156,075.28
  5. Step 5: Solve for x
    x = 19,214,156,075.28/177,318.80
  6. Step 6: Final answer
    x = 108,359.38

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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.