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Finding the Fourth Proportional to 178,019.20, 266,942.40 and 99,049.60

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Solution

The fourth proportional to 178,019.20, 266,942.40 and 99,049.60 is: 148,526.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,019.20 : 266,942.40 = 99,049.60 : x
  2. Step 2: Convert to fraction form
    178,019.20/266,942.40 = 99,049.60/x
  3. Step 3: Cross multiply
    178,019.20x = 266,942.40 × 99,049.60
  4. Step 4: Simplify right side
    178,019.20x = 26,440,537,943.04
  5. Step 5: Solve for x
    x = 26,440,537,943.04/178,019.20
  6. Step 6: Final answer
    x = 148,526.33

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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.