Home / 123,266.91-170,108.40-66,678.29

Finding the Fourth Proportional to 123,266.91, 170,108.40 and 66,678.29

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Solution

The fourth proportional to 123,266.91, 170,108.40 and 66,678.29 is: 92,016.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,266.91 : 170,108.40 = 66,678.29 : x
  2. Step 2: Convert to fraction form
    123,266.91/170,108.40 = 66,678.29/x
  3. Step 3: Cross multiply
    123,266.91x = 170,108.40 × 66,678.29
  4. Step 4: Simplify right side
    123,266.91x = 11,342,537,264.04
  5. Step 5: Solve for x
    x = 11,342,537,264.04/123,266.91
  6. Step 6: Final answer
    x = 92,016.07

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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.