Home / 120,308.94-180,361.90-75,837.65

Finding the Fourth Proportional to 120,308.94, 180,361.90 and 75,837.65

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Solution

The fourth proportional to 120,308.94, 180,361.90 and 75,837.65 is: 113,692.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,308.94 : 180,361.90 = 75,837.65 : x
  2. Step 2: Convert to fraction form
    120,308.94/180,361.90 = 75,837.65/x
  3. Step 3: Cross multiply
    120,308.94x = 180,361.90 × 75,837.65
  4. Step 4: Simplify right side
    120,308.94x = 13,678,221,554.13
  5. Step 5: Solve for x
    x = 13,678,221,554.13/120,308.94
  6. Step 6: Final answer
    x = 113,692.48

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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.