Home / 120,316.08-180,372.64-75,844.84

Finding the Fourth Proportional to 120,316.08, 180,372.64 and 75,844.84

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Solution

The fourth proportional to 120,316.08, 180,372.64 and 75,844.84 is: 113,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,316.08 : 180,372.64 = 75,844.84 : x
  2. Step 2: Convert to fraction form
    120,316.08/180,372.64 = 75,844.84/x
  3. Step 3: Cross multiply
    120,316.08x = 180,372.64 × 75,844.84
  4. Step 4: Simplify right side
    120,316.08x = 13,680,334,021.18
  5. Step 5: Solve for x
    x = 13,680,334,021.18/120,316.08
  6. Step 6: Final answer
    x = 113,703.29

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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.