Home / 154,606.60-231,641.10-71,329.80

Finding the Fourth Proportional to 154,606.60, 231,641.10 and 71,329.80

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Solution

The fourth proportional to 154,606.60, 231,641.10 and 71,329.80 is: 106,870.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,606.60 : 231,641.10 = 71,329.80 : x
  2. Step 2: Convert to fraction form
    154,606.60/231,641.10 = 71,329.80/x
  3. Step 3: Cross multiply
    154,606.60x = 231,641.10 × 71,329.80
  4. Step 4: Simplify right side
    154,606.60x = 16,522,913,334.78
  5. Step 5: Solve for x
    x = 16,522,913,334.78/154,606.60
  6. Step 6: Final answer
    x = 106,870.69

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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.