Home / 123,032.19-169,784.43-66,443.57

Finding the Fourth Proportional to 123,032.19, 169,784.43 and 66,443.57

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Solution

The fourth proportional to 123,032.19, 169,784.43 and 66,443.57 is: 91,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,032.19 : 169,784.43 = 66,443.57 : x
  2. Step 2: Convert to fraction form
    123,032.19/169,784.43 = 66,443.57/x
  3. Step 3: Cross multiply
    123,032.19x = 169,784.43 × 66,443.57
  4. Step 4: Simplify right side
    123,032.19x = 11,281,083,659.62
  5. Step 5: Solve for x
    x = 11,281,083,659.62/123,032.19
  6. Step 6: Final answer
    x = 91,692.13

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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.