Home / 155,297.48-232,780.12-80,342.16

Finding the Fourth Proportional to 155,297.48, 232,780.12 and 80,342.16

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Solution

The fourth proportional to 155,297.48, 232,780.12 and 80,342.16 is: 120,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,297.48 : 232,780.12 = 80,342.16 : x
  2. Step 2: Convert to fraction form
    155,297.48/232,780.12 = 80,342.16/x
  3. Step 3: Cross multiply
    155,297.48x = 232,780.12 × 80,342.16
  4. Step 4: Simplify right side
    155,297.48x = 18,702,057,645.86
  5. Step 5: Solve for x
    x = 18,702,057,645.86/155,297.48
  6. Step 6: Final answer
    x = 120,427.31

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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.