Home / 154,218.23-231,328.98-54,359.81

Finding the Fourth Proportional to 154,218.23, 231,328.98 and 54,359.81

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Solution

The fourth proportional to 154,218.23, 231,328.98 and 54,359.81 is: 81,540.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,218.23 : 231,328.98 = 54,359.81 : x
  2. Step 2: Convert to fraction form
    154,218.23/231,328.98 = 54,359.81/x
  3. Step 3: Cross multiply
    154,218.23x = 231,328.98 × 54,359.81
  4. Step 4: Simplify right side
    154,218.23x = 12,574,999,400.29
  5. Step 5: Solve for x
    x = 12,574,999,400.29/154,218.23
  6. Step 6: Final answer
    x = 81,540.29

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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.