Home / 120,482.40-166,266.68-66,768.30

Finding the Fourth Proportional to 120,482.40, 166,266.68 and 66,768.30

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Solution

The fourth proportional to 120,482.40, 166,266.68 and 66,768.30 is: 92,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,482.40 : 166,266.68 = 66,768.30 : x
  2. Step 2: Convert to fraction form
    120,482.40/166,266.68 = 66,768.30/x
  3. Step 3: Cross multiply
    120,482.40x = 166,266.68 × 66,768.30
  4. Step 4: Simplify right side
    120,482.40x = 11,101,343,570.24
  5. Step 5: Solve for x
    x = 11,101,343,570.24/120,482.40
  6. Step 6: Final answer
    x = 92,140.79

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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.