Home / 185,979.40-278,969.10-61,304.20

Finding the Fourth Proportional to 185,979.40, 278,969.10 and 61,304.20

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Solution

The fourth proportional to 185,979.40, 278,969.10 and 61,304.20 is: 91,956.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,979.40 : 278,969.10 = 61,304.20 : x
  2. Step 2: Convert to fraction form
    185,979.40/278,969.10 = 61,304.20/x
  3. Step 3: Cross multiply
    185,979.40x = 278,969.10 × 61,304.20
  4. Step 4: Simplify right side
    185,979.40x = 17,101,977,500.22
  5. Step 5: Solve for x
    x = 17,101,977,500.22/185,979.40
  6. Step 6: Final answer
    x = 91,956.30

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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.