Home / 140,977.28-194,547.74-80,566.40

Finding the Fourth Proportional to 140,977.28, 194,547.74 and 80,566.40

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Solution

The fourth proportional to 140,977.28, 194,547.74 and 80,566.40 is: 111,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,977.28 : 194,547.74 = 80,566.40 : x
  2. Step 2: Convert to fraction form
    140,977.28/194,547.74 = 80,566.40/x
  3. Step 3: Cross multiply
    140,977.28x = 194,547.74 × 80,566.40
  4. Step 4: Simplify right side
    140,977.28x = 15,674,011,039.94
  5. Step 5: Solve for x
    x = 15,674,011,039.94/140,977.28
  6. Step 6: Final answer
    x = 111,181.11

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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.