Home / 142,094.43-213,141.65-71,993.79

Finding the Fourth Proportional to 142,094.43, 213,141.65 and 71,993.79

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Solution

The fourth proportional to 142,094.43, 213,141.65 and 71,993.79 is: 107,990.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,094.43 : 213,141.65 = 71,993.79 : x
  2. Step 2: Convert to fraction form
    142,094.43/213,141.65 = 71,993.79/x
  3. Step 3: Cross multiply
    142,094.43x = 213,141.65 × 71,993.79
  4. Step 4: Simplify right side
    142,094.43x = 15,344,874,830.38
  5. Step 5: Solve for x
    x = 15,344,874,830.38/142,094.43
  6. Step 6: Final answer
    x = 107,990.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.