Home / 185,545.64-278,317.74-67,189.30

Finding the Fourth Proportional to 185,545.64, 278,317.74 and 67,189.30

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Solution

The fourth proportional to 185,545.64, 278,317.74 and 67,189.30 is: 100,783.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,545.64 : 278,317.74 = 67,189.30 : x
  2. Step 2: Convert to fraction form
    185,545.64/278,317.74 = 67,189.30/x
  3. Step 3: Cross multiply
    185,545.64x = 278,317.74 × 67,189.30
  4. Step 4: Simplify right side
    185,545.64x = 18,699,974,128.18
  5. Step 5: Solve for x
    x = 18,699,974,128.18/185,545.64
  6. Step 6: Final answer
    x = 100,783.69

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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.