Home / 154,501.07-231,693.29-71,336.75

Finding the Fourth Proportional to 154,501.07, 231,693.29 and 71,336.75

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Solution

The fourth proportional to 154,501.07, 231,693.29 and 71,336.75 is: 106,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,501.07 : 231,693.29 = 71,336.75 : x
  2. Step 2: Convert to fraction form
    154,501.07/231,693.29 = 71,336.75/x
  3. Step 3: Cross multiply
    154,501.07x = 231,693.29 × 71,336.75
  4. Step 4: Simplify right side
    154,501.07x = 16,528,245,948.72
  5. Step 5: Solve for x
    x = 16,528,245,948.72/154,501.07
  6. Step 6: Final answer
    x = 106,978.20

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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.