Home / 141,775.12-195,649.67-78,112.36

Finding the Fourth Proportional to 141,775.12, 195,649.67 and 78,112.36

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Solution

The fourth proportional to 141,775.12, 195,649.67 and 78,112.36 is: 107,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,775.12 : 195,649.67 = 78,112.36 : x
  2. Step 2: Convert to fraction form
    141,775.12/195,649.67 = 78,112.36/x
  3. Step 3: Cross multiply
    141,775.12x = 195,649.67 × 78,112.36
  4. Step 4: Simplify right side
    141,775.12x = 15,282,656,088.11
  5. Step 5: Solve for x
    x = 15,282,656,088.11/141,775.12
  6. Step 6: Final answer
    x = 107,795.05

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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.