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Finding the Fourth Proportional to 154,041.20, 231,061.80 and 103,302.80

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Solution

The fourth proportional to 154,041.20, 231,061.80 and 103,302.80 is: 154,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,041.20 : 231,061.80 = 103,302.80 : x
  2. Step 2: Convert to fraction form
    154,041.20/231,061.80 = 103,302.80/x
  3. Step 3: Cross multiply
    154,041.20x = 231,061.80 × 103,302.80
  4. Step 4: Simplify right side
    154,041.20x = 23,869,330,913.04
  5. Step 5: Solve for x
    x = 23,869,330,913.04/154,041.20
  6. Step 6: Final answer
    x = 154,954.20

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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.