Home / 155,275.20-232,912.80-55,438.65

Finding the Fourth Proportional to 155,275.20, 232,912.80 and 55,438.65

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Solution

The fourth proportional to 155,275.20, 232,912.80 and 55,438.65 is: 83,157.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,275.20 : 232,912.80 = 55,438.65 : x
  2. Step 2: Convert to fraction form
    155,275.20/232,912.80 = 55,438.65/x
  3. Step 3: Cross multiply
    155,275.20x = 232,912.80 × 55,438.65
  4. Step 4: Simplify right side
    155,275.20x = 12,912,371,199.72
  5. Step 5: Solve for x
    x = 12,912,371,199.72/155,275.20
  6. Step 6: Final answer
    x = 83,157.98

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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.