Home / 141,865.29-195,775.43-78,205.37

Finding the Fourth Proportional to 141,865.29, 195,775.43 and 78,205.37

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Solution

The fourth proportional to 141,865.29, 195,775.43 and 78,205.37 is: 107,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,865.29 : 195,775.43 = 78,205.37 : x
  2. Step 2: Convert to fraction form
    141,865.29/195,775.43 = 78,205.37/x
  3. Step 3: Cross multiply
    141,865.29x = 195,775.43 × 78,205.37
  4. Step 4: Simplify right side
    141,865.29x = 15,310,688,570.16
  5. Step 5: Solve for x
    x = 15,310,688,570.16/141,865.29
  6. Step 6: Final answer
    x = 107,924.13

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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.