Home / 185,847.40-278,771.10-61,172.20

Finding the Fourth Proportional to 185,847.40, 278,771.10 and 61,172.20

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Solution

The fourth proportional to 185,847.40, 278,771.10 and 61,172.20 is: 91,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,847.40 : 278,771.10 = 61,172.20 : x
  2. Step 2: Convert to fraction form
    185,847.40/278,771.10 = 61,172.20/x
  3. Step 3: Cross multiply
    185,847.40x = 278,771.10 × 61,172.20
  4. Step 4: Simplify right side
    185,847.40x = 17,053,041,483.42
  5. Step 5: Solve for x
    x = 17,053,041,483.42/185,847.40
  6. Step 6: Final answer
    x = 91,758.30

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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.