Home / 120,077.17-165,692.14-66,354.88

Finding the Fourth Proportional to 120,077.17, 165,692.14 and 66,354.88

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Solution

The fourth proportional to 120,077.17, 165,692.14 and 66,354.88 is: 91,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,077.17 : 165,692.14 = 66,354.88 : x
  2. Step 2: Convert to fraction form
    120,077.17/165,692.14 = 66,354.88/x
  3. Step 3: Cross multiply
    120,077.17x = 165,692.14 × 66,354.88
  4. Step 4: Simplify right side
    120,077.17x = 10,994,482,066.64
  5. Step 5: Solve for x
    x = 10,994,482,066.64/120,077.17
  6. Step 6: Final answer
    x = 91,561.80

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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.