Home / 113,911.47-157,191.32-68,022.90

Finding the Fourth Proportional to 113,911.47, 157,191.32 and 68,022.90

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Solution

The fourth proportional to 113,911.47, 157,191.32 and 68,022.90 is: 93,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,911.47 : 157,191.32 = 68,022.90 : x
  2. Step 2: Convert to fraction form
    113,911.47/157,191.32 = 68,022.90/x
  3. Step 3: Cross multiply
    113,911.47x = 157,191.32 × 68,022.90
  4. Step 4: Simplify right side
    113,911.47x = 10,692,609,441.23
  5. Step 5: Solve for x
    x = 10,692,609,441.23/113,911.47
  6. Step 6: Final answer
    x = 93,867.72

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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.