Home / 123,827.76-170,882.64-67,239.36

Finding the Fourth Proportional to 123,827.76, 170,882.64 and 67,239.36

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Solution

The fourth proportional to 123,827.76, 170,882.64 and 67,239.36 is: 92,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,827.76 : 170,882.64 = 67,239.36 : x
  2. Step 2: Convert to fraction form
    123,827.76/170,882.64 = 67,239.36/x
  3. Step 3: Cross multiply
    123,827.76x = 170,882.64 × 67,239.36
  4. Step 4: Simplify right side
    123,827.76x = 11,490,039,348.71
  5. Step 5: Solve for x
    x = 11,490,039,348.71/123,827.76
  6. Step 6: Final answer
    x = 92,790.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.