Home / 185,629.40-278,444.10-126,580.40

Finding the Fourth Proportional to 185,629.40, 278,444.10 and 126,580.40

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Solution

The fourth proportional to 185,629.40, 278,444.10 and 126,580.40 is: 189,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,629.40 : 278,444.10 = 126,580.40 : x
  2. Step 2: Convert to fraction form
    185,629.40/278,444.10 = 126,580.40/x
  3. Step 3: Cross multiply
    185,629.40x = 278,444.10 × 126,580.40
  4. Step 4: Simplify right side
    185,629.40x = 35,245,565,555.64
  5. Step 5: Solve for x
    x = 35,245,565,555.64/185,629.40
  6. Step 6: Final answer
    x = 189,870.60

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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.