Home / 185,547.40-278,321.10-67,222.60

Finding the Fourth Proportional to 185,547.40, 278,321.10 and 67,222.60

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Solution

The fourth proportional to 185,547.40, 278,321.10 and 67,222.60 is: 100,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,547.40 : 278,321.10 = 67,222.60 : x
  2. Step 2: Convert to fraction form
    185,547.40/278,321.10 = 67,222.60/x
  3. Step 3: Cross multiply
    185,547.40x = 278,321.10 × 67,222.60
  4. Step 4: Simplify right side
    185,547.40x = 18,709,467,976.86
  5. Step 5: Solve for x
    x = 18,709,467,976.86/185,547.40
  6. Step 6: Final answer
    x = 100,833.90

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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.