Home / 153,882.18-212,190.03-100,067.40

Finding the Fourth Proportional to 153,882.18, 212,190.03 and 100,067.40

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Solution

The fourth proportional to 153,882.18, 212,190.03 and 100,067.40 is: 137,984.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,882.18 : 212,190.03 = 100,067.40 : x
  2. Step 2: Convert to fraction form
    153,882.18/212,190.03 = 100,067.40/x
  3. Step 3: Cross multiply
    153,882.18x = 212,190.03 × 100,067.40
  4. Step 4: Simplify right side
    153,882.18x = 21,233,304,608.02
  5. Step 5: Solve for x
    x = 21,233,304,608.02/153,882.18
  6. Step 6: Final answer
    x = 137,984.17

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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.