Home / 155,287.32-232,873.60-55,420.80

Finding the Fourth Proportional to 155,287.32, 232,873.60 and 55,420.80

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Solution

The fourth proportional to 155,287.32, 232,873.60 and 55,420.80 is: 83,110.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,287.32 : 232,873.60 = 55,420.80 : x
  2. Step 2: Convert to fraction form
    155,287.32/232,873.60 = 55,420.80/x
  3. Step 3: Cross multiply
    155,287.32x = 232,873.60 × 55,420.80
  4. Step 4: Simplify right side
    155,287.32x = 12,906,041,210.88
  5. Step 5: Solve for x
    x = 12,906,041,210.88/155,287.32
  6. Step 6: Final answer
    x = 83,110.72

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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.