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Finding the Fourth Proportional to 169,692.40, 254,538.60 and 86,575.60

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Solution

The fourth proportional to 169,692.40, 254,538.60 and 86,575.60 is: 129,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,692.40 : 254,538.60 = 86,575.60 : x
  2. Step 2: Convert to fraction form
    169,692.40/254,538.60 = 86,575.60/x
  3. Step 3: Cross multiply
    169,692.40x = 254,538.60 × 86,575.60
  4. Step 4: Simplify right side
    169,692.40x = 22,036,832,018.16
  5. Step 5: Solve for x
    x = 22,036,832,018.16/169,692.40
  6. Step 6: Final answer
    x = 129,863.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.