Home / 141,056.80-194,655.12-80,663.20

Finding the Fourth Proportional to 141,056.80, 194,655.12 and 80,663.20

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Solution

The fourth proportional to 141,056.80, 194,655.12 and 80,663.20 is: 111,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,056.80 : 194,655.12 = 80,663.20 : x
  2. Step 2: Convert to fraction form
    141,056.80/194,655.12 = 80,663.20/x
  3. Step 3: Cross multiply
    141,056.80x = 194,655.12 × 80,663.20
  4. Step 4: Simplify right side
    141,056.80x = 15,701,504,875.58
  5. Step 5: Solve for x
    x = 15,701,504,875.58/141,056.80
  6. Step 6: Final answer
    x = 111,313.35

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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.