Home / 140,646.48-194,090.18-80,218.15

Finding the Fourth Proportional to 140,646.48, 194,090.18 and 80,218.15

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Solution

The fourth proportional to 140,646.48, 194,090.18 and 80,218.15 is: 110,699.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,646.48 : 194,090.18 = 80,218.15 : x
  2. Step 2: Convert to fraction form
    140,646.48/194,090.18 = 80,218.15/x
  3. Step 3: Cross multiply
    140,646.48x = 194,090.18 × 80,218.15
  4. Step 4: Simplify right side
    140,646.48x = 15,569,554,286.45
  5. Step 5: Solve for x
    x = 15,569,554,286.45/140,646.48
  6. Step 6: Final answer
    x = 110,699.92

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1.5x scale

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.