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Finding the Fourth Proportional to 123,747.80, 185,621.70 and 73,228.10

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Solution

The fourth proportional to 123,747.80, 185,621.70 and 73,228.10 is: 109,842.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,747.80 : 185,621.70 = 73,228.10 : x
  2. Step 2: Convert to fraction form
    123,747.80/185,621.70 = 73,228.10/x
  3. Step 3: Cross multiply
    123,747.80x = 185,621.70 × 73,228.10
  4. Step 4: Simplify right side
    123,747.80x = 13,592,724,409.77
  5. Step 5: Solve for x
    x = 13,592,724,409.77/123,747.80
  6. Step 6: Final answer
    x = 109,842.15

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1.5x scale

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.