Home / 149,376.90-206,073.45-100,963.38

Finding the Fourth Proportional to 149,376.90, 206,073.45 and 100,963.38

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Solution

The fourth proportional to 149,376.90, 206,073.45 and 100,963.38 is: 139,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,376.90 : 206,073.45 = 100,963.38 : x
  2. Step 2: Convert to fraction form
    149,376.90/206,073.45 = 100,963.38/x
  3. Step 3: Cross multiply
    149,376.90x = 206,073.45 × 100,963.38
  4. Step 4: Simplify right side
    149,376.90x = 20,805,872,040.26
  5. Step 5: Solve for x
    x = 20,805,872,040.26/149,376.90
  6. Step 6: Final answer
    x = 139,284.40

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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.