Home / 123,766.79-170,798.09-67,178.16

Finding the Fourth Proportional to 123,766.79, 170,798.09 and 67,178.16

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Solution

The fourth proportional to 123,766.79, 170,798.09 and 67,178.16 is: 92,705.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,766.79 : 170,798.09 = 67,178.16 : x
  2. Step 2: Convert to fraction form
    123,766.79/170,798.09 = 67,178.16/x
  3. Step 3: Cross multiply
    123,766.79x = 170,798.09 × 67,178.16
  4. Step 4: Simplify right side
    123,766.79x = 11,473,901,081.82
  5. Step 5: Solve for x
    x = 11,473,901,081.82/123,766.79
  6. Step 6: Final answer
    x = 92,705.82

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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.