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Finding the Fourth Proportional to 123,032.34, 169,784.60 and 66,443.72

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Solution

The fourth proportional to 123,032.34, 169,784.60 and 66,443.72 is: 91,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,032.34 : 169,784.60 = 66,443.72 : x
  2. Step 2: Convert to fraction form
    123,032.34/169,784.60 = 66,443.72/x
  3. Step 3: Cross multiply
    123,032.34x = 169,784.60 × 66,443.72
  4. Step 4: Simplify right side
    123,032.34x = 11,281,119,241.57
  5. Step 5: Solve for x
    x = 11,281,119,241.57/123,032.34
  6. Step 6: Final answer
    x = 91,692.31

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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.