Home / 178,762.23-268,139.85-72,143.34

Finding the Fourth Proportional to 178,762.23, 268,139.85 and 72,143.34

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Solution

The fourth proportional to 178,762.23, 268,139.85 and 72,143.34 is: 108,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,762.23 : 268,139.85 = 72,143.34 : x
  2. Step 2: Convert to fraction form
    178,762.23/268,139.85 = 72,143.34/x
  3. Step 3: Cross multiply
    178,762.23x = 268,139.85 × 72,143.34
  4. Step 4: Simplify right side
    178,762.23x = 19,344,504,366.10
  5. Step 5: Solve for x
    x = 19,344,504,366.10/178,762.23
  6. Step 6: Final answer
    x = 108,213.60

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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.