Home / 141,988.96-195,943.84-78,325.44

Finding the Fourth Proportional to 141,988.96, 195,943.84 and 78,325.44

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Solution

The fourth proportional to 141,988.96, 195,943.84 and 78,325.44 is: 108,088.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,988.96 : 195,943.84 = 78,325.44 : x
  2. Step 2: Convert to fraction form
    141,988.96/195,943.84 = 78,325.44/x
  3. Step 3: Cross multiply
    141,988.96x = 195,943.84 × 78,325.44
  4. Step 4: Simplify right side
    141,988.96x = 15,347,387,483.29
  5. Step 5: Solve for x
    x = 15,347,387,483.29/141,988.96
  6. Step 6: Final answer
    x = 108,088.60

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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.