Home / 141,826.30-195,719.90-78,164.08

Finding the Fourth Proportional to 141,826.30, 195,719.90 and 78,164.08

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Solution

The fourth proportional to 141,826.30, 195,719.90 and 78,164.08 is: 107,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,826.30 : 195,719.90 = 78,164.08 : x
  2. Step 2: Convert to fraction form
    141,826.30/195,719.90 = 78,164.08/x
  3. Step 3: Cross multiply
    141,826.30x = 195,719.90 × 78,164.08
  4. Step 4: Simplify right side
    141,826.30x = 15,298,265,041.07
  5. Step 5: Solve for x
    x = 15,298,265,041.07/141,826.30
  6. Step 6: Final answer
    x = 107,866.21

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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.