Home / 119,711.79-165,199.23-65,995.56

Finding the Fourth Proportional to 119,711.79, 165,199.23 and 65,995.56

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Solution

The fourth proportional to 119,711.79, 165,199.23 and 65,995.56 is: 91,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,711.79 : 165,199.23 = 65,995.56 : x
  2. Step 2: Convert to fraction form
    119,711.79/165,199.23 = 65,995.56/x
  3. Step 3: Cross multiply
    119,711.79x = 165,199.23 × 65,995.56
  4. Step 4: Simplify right side
    119,711.79x = 10,902,415,695.42
  5. Step 5: Solve for x
    x = 10,902,415,695.42/119,711.79
  6. Step 6: Final answer
    x = 91,072.20

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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.