Home / 154,541.80-231,683.10-80,669.80

Finding the Fourth Proportional to 154,541.80, 231,683.10 and 80,669.80

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Solution

The fourth proportional to 154,541.80, 231,683.10 and 80,669.80 is: 120,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,541.80 : 231,683.10 = 80,669.80 : x
  2. Step 2: Convert to fraction form
    154,541.80/231,683.10 = 80,669.80/x
  3. Step 3: Cross multiply
    154,541.80x = 231,683.10 × 80,669.80
  4. Step 4: Simplify right side
    154,541.80x = 18,689,829,340.38
  5. Step 5: Solve for x
    x = 18,689,829,340.38/154,541.80
  6. Step 6: Final answer
    x = 120,937.05

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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.