Home / 106,693.71-147,172.25-68,440.38

Finding the Fourth Proportional to 106,693.71, 147,172.25 and 68,440.38

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Solution

The fourth proportional to 106,693.71, 147,172.25 and 68,440.38 is: 94,405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,693.71 : 147,172.25 = 68,440.38 : x
  2. Step 2: Convert to fraction form
    106,693.71/147,172.25 = 68,440.38/x
  3. Step 3: Cross multiply
    106,693.71x = 147,172.25 × 68,440.38
  4. Step 4: Simplify right side
    106,693.71x = 10,072,524,373.25
  5. Step 5: Solve for x
    x = 10,072,524,373.25/106,693.71
  6. Step 6: Final answer
    x = 94,405.98

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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.