Home / 154,262.55-231,422.76-70,028.65

Finding the Fourth Proportional to 154,262.55, 231,422.76 and 70,028.65

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Solution

The fourth proportional to 154,262.55, 231,422.76 and 70,028.65 is: 105,056.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,262.55 : 231,422.76 = 70,028.65 : x
  2. Step 2: Convert to fraction form
    154,262.55/231,422.76 = 70,028.65/x
  3. Step 3: Cross multiply
    154,262.55x = 231,422.76 × 70,028.65
  4. Step 4: Simplify right side
    154,262.55x = 16,206,223,652.87
  5. Step 5: Solve for x
    x = 16,206,223,652.87/154,262.55
  6. Step 6: Final answer
    x = 105,056.11

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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.