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Finding the Fourth Proportional to 155,559.20, 232,993.20 and 127,911.20

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Solution

The fourth proportional to 155,559.20, 232,993.20 and 127,911.20 is: 191,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,559.20 : 232,993.20 = 127,911.20 : x
  2. Step 2: Convert to fraction form
    155,559.20/232,993.20 = 127,911.20/x
  3. Step 3: Cross multiply
    155,559.20x = 232,993.20 × 127,911.20
  4. Step 4: Simplify right side
    155,559.20x = 29,802,439,803.84
  5. Step 5: Solve for x
    x = 29,802,439,803.84/155,559.20
  6. Step 6: Final answer
    x = 191,582.62

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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.