Home / 153,934.82-212,370.09-103,667.30

Finding the Fourth Proportional to 153,934.82, 212,370.09 and 103,667.30

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Solution

The fourth proportional to 153,934.82, 212,370.09 and 103,667.30 is: 143,020.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,934.82 : 212,370.09 = 103,667.30 : x
  2. Step 2: Convert to fraction form
    153,934.82/212,370.09 = 103,667.30/x
  3. Step 3: Cross multiply
    153,934.82x = 212,370.09 × 103,667.30
  4. Step 4: Simplify right side
    153,934.82x = 22,015,833,831.06
  5. Step 5: Solve for x
    x = 22,015,833,831.06/153,934.82
  6. Step 6: Final answer
    x = 143,020.49

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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.