Home / 155,100.80-232,453.56-66,331.28

Finding the Fourth Proportional to 155,100.80, 232,453.56 and 66,331.28

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Solution

The fourth proportional to 155,100.80, 232,453.56 and 66,331.28 is: 99,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,100.80 : 232,453.56 = 66,331.28 : x
  2. Step 2: Convert to fraction form
    155,100.80/232,453.56 = 66,331.28/x
  3. Step 3: Cross multiply
    155,100.80x = 232,453.56 × 66,331.28
  4. Step 4: Simplify right side
    155,100.80x = 15,418,942,175.36
  5. Step 5: Solve for x
    x = 15,418,942,175.36/155,100.80
  6. Step 6: Final answer
    x = 99,412.40

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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.