Home / 188,079.12-282,167.28-69,784.20

Finding the Fourth Proportional to 188,079.12, 282,167.28 and 69,784.20

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Solution

The fourth proportional to 188,079.12, 282,167.28 and 69,784.20 is: 104,694.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,079.12 : 282,167.28 = 69,784.20 : x
  2. Step 2: Convert to fraction form
    188,079.12/282,167.28 = 69,784.20/x
  3. Step 3: Cross multiply
    188,079.12x = 282,167.28 × 69,784.20
  4. Step 4: Simplify right side
    188,079.12x = 19,690,817,900.98
  5. Step 5: Solve for x
    x = 19,690,817,900.98/188,079.12
  6. Step 6: Final answer
    x = 104,694.33

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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.