Home / 141,669.50-195,486.90-81,237.02

Finding the Fourth Proportional to 141,669.50, 195,486.90 and 81,237.02

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Solution

The fourth proportional to 141,669.50, 195,486.90 and 81,237.02 is: 112,097.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,669.50 : 195,486.90 = 81,237.02 : x
  2. Step 2: Convert to fraction form
    141,669.50/195,486.90 = 81,237.02/x
  3. Step 3: Cross multiply
    141,669.50x = 195,486.90 × 81,237.02
  4. Step 4: Simplify right side
    141,669.50x = 15,880,773,205.04
  5. Step 5: Solve for x
    x = 15,880,773,205.04/141,669.50
  6. Step 6: Final answer
    x = 112,097.33

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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.