Home / 106,724.22-147,214.16-68,470.75

Finding the Fourth Proportional to 106,724.22, 147,214.16 and 68,470.75

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Solution

The fourth proportional to 106,724.22, 147,214.16 and 68,470.75 is: 94,447.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,724.22 : 147,214.16 = 68,470.75 : x
  2. Step 2: Convert to fraction form
    106,724.22/147,214.16 = 68,470.75/x
  3. Step 3: Cross multiply
    106,724.22x = 147,214.16 × 68,470.75
  4. Step 4: Simplify right side
    106,724.22x = 10,079,863,603.47
  5. Step 5: Solve for x
    x = 10,079,863,603.47/106,724.22
  6. Step 6: Final answer
    x = 94,447.77

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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.