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Finding the Fourth Proportional to 186,002.80, 279,077.10 and 67,686.10

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Solution

The fourth proportional to 186,002.80, 279,077.10 and 67,686.10 is: 101,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,002.80 : 279,077.10 = 67,686.10 : x
  2. Step 2: Convert to fraction form
    186,002.80/279,077.10 = 67,686.10/x
  3. Step 3: Cross multiply
    186,002.80x = 279,077.10 × 67,686.10
  4. Step 4: Simplify right side
    186,002.80x = 18,889,640,498.31
  5. Step 5: Solve for x
    x = 18,889,640,498.31/186,002.80
  6. Step 6: Final answer
    x = 101,555.68

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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.