Home / 185,430.55-278,145.83-45,190.39

Finding the Fourth Proportional to 185,430.55, 278,145.83 and 45,190.39

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Solution

The fourth proportional to 185,430.55, 278,145.83 and 45,190.39 is: 67,785.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,430.55 : 278,145.83 = 45,190.39 : x
  2. Step 2: Convert to fraction form
    185,430.55/278,145.83 = 45,190.39/x
  3. Step 3: Cross multiply
    185,430.55x = 278,145.83 × 45,190.39
  4. Step 4: Simplify right side
    185,430.55x = 12,569,518,534.57
  5. Step 5: Solve for x
    x = 12,569,518,534.57/185,430.55
  6. Step 6: Final answer
    x = 67,785.59

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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.