Home / 185,715.18-278,572.77-67,386.33

Finding the Fourth Proportional to 185,715.18, 278,572.77 and 67,386.33

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Solution

The fourth proportional to 185,715.18, 278,572.77 and 67,386.33 is: 101,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,715.18 : 278,572.77 = 67,386.33 : x
  2. Step 2: Convert to fraction form
    185,715.18/278,572.77 = 67,386.33/x
  3. Step 3: Cross multiply
    185,715.18x = 278,572.77 × 67,386.33
  4. Step 4: Simplify right side
    185,715.18x = 18,771,996,608.23
  5. Step 5: Solve for x
    x = 18,771,996,608.23/185,715.18
  6. Step 6: Final answer
    x = 101,079.50

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Similar ratio
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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.