Home / 123,513.24-170,443.71-66,923.40

Finding the Fourth Proportional to 123,513.24, 170,443.71 and 66,923.40

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Solution

The fourth proportional to 123,513.24, 170,443.71 and 66,923.40 is: 92,351.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,513.24 : 170,443.71 = 66,923.40 : x
  2. Step 2: Convert to fraction form
    123,513.24/170,443.71 = 66,923.40/x
  3. Step 3: Cross multiply
    123,513.24x = 170,443.71 × 66,923.40
  4. Step 4: Simplify right side
    123,513.24x = 11,406,672,581.81
  5. Step 5: Solve for x
    x = 11,406,672,581.81/123,513.24
  6. Step 6: Final answer
    x = 92,351.82

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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.