Home / 134,919.40-186,213.12-80,475.08

Finding the Fourth Proportional to 134,919.40, 186,213.12 and 80,475.08

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Solution

The fourth proportional to 134,919.40, 186,213.12 and 80,475.08 is: 111,070.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,919.40 : 186,213.12 = 80,475.08 : x
  2. Step 2: Convert to fraction form
    134,919.40/186,213.12 = 80,475.08/x
  3. Step 3: Cross multiply
    134,919.40x = 186,213.12 × 80,475.08
  4. Step 4: Simplify right side
    134,919.40x = 14,985,515,729.05
  5. Step 5: Solve for x
    x = 14,985,515,729.05/134,919.40
  6. Step 6: Final answer
    x = 111,070.13

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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.