Home / 123,184.20-170,020.60-77,833.40

Finding the Fourth Proportional to 123,184.20, 170,020.60 and 77,833.40

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Solution

The fourth proportional to 123,184.20, 170,020.60 and 77,833.40 is: 107,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,184.20 : 170,020.60 = 77,833.40 : x
  2. Step 2: Convert to fraction form
    123,184.20/170,020.60 = 77,833.40/x
  3. Step 3: Cross multiply
    123,184.20x = 170,020.60 × 77,833.40
  4. Step 4: Simplify right side
    123,184.20x = 13,233,281,368.04
  5. Step 5: Solve for x
    x = 13,233,281,368.04/123,184.20
  6. Step 6: Final answer
    x = 107,426.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.