Home / 120,314.09-180,369.66-75,842.84

Finding the Fourth Proportional to 120,314.09, 180,369.66 and 75,842.84

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Solution

The fourth proportional to 120,314.09, 180,369.66 and 75,842.84 is: 113,700.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,314.09 : 180,369.66 = 75,842.84 : x
  2. Step 2: Convert to fraction form
    120,314.09/180,369.66 = 75,842.84/x
  3. Step 3: Cross multiply
    120,314.09x = 180,369.66 × 75,842.84
  4. Step 4: Simplify right side
    120,314.09x = 13,679,747,264.23
  5. Step 5: Solve for x
    x = 13,679,747,264.23/120,314.09
  6. Step 6: Final answer
    x = 113,700.29

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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.