Home / 155,297.30-232,888.62-55,430.78

Finding the Fourth Proportional to 155,297.30, 232,888.62 and 55,430.78

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Solution

The fourth proportional to 155,297.30, 232,888.62 and 55,430.78 is: 83,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,297.30 : 232,888.62 = 55,430.78 : x
  2. Step 2: Convert to fraction form
    155,297.30/232,888.62 = 55,430.78/x
  3. Step 3: Cross multiply
    155,297.30x = 232,888.62 × 55,430.78
  4. Step 4: Simplify right side
    155,297.30x = 12,909,197,859.72
  5. Step 5: Solve for x
    x = 12,909,197,859.72/155,297.30
  6. Step 6: Final answer
    x = 83,125.71

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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.