Home / 106,641.28-159,934.08-31,741.12

Finding the Fourth Proportional to 106,641.28, 159,934.08 and 31,741.12

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Solution

The fourth proportional to 106,641.28, 159,934.08 and 31,741.12 is: 47,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,641.28 : 159,934.08 = 31,741.12 : x
  2. Step 2: Convert to fraction form
    106,641.28/159,934.08 = 31,741.12/x
  3. Step 3: Cross multiply
    106,641.28x = 159,934.08 × 31,741.12
  4. Step 4: Simplify right side
    106,641.28x = 5,076,486,825.37
  5. Step 5: Solve for x
    x = 5,076,486,825.37/106,641.28
  6. Step 6: Final answer
    x = 47,603.39

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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.