Home / 107,945.16-148,913.48-70,205.64

Finding the Fourth Proportional to 107,945.16, 148,913.48 and 70,205.64

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Solution

The fourth proportional to 107,945.16, 148,913.48 and 70,205.64 is: 96,850.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,945.16 : 148,913.48 = 70,205.64 : x
  2. Step 2: Convert to fraction form
    107,945.16/148,913.48 = 70,205.64/x
  3. Step 3: Cross multiply
    107,945.16x = 148,913.48 × 70,205.64
  4. Step 4: Simplify right side
    107,945.16x = 10,454,566,168.03
  5. Step 5: Solve for x
    x = 10,454,566,168.03/107,945.16
  6. Step 6: Final answer
    x = 96,850.72

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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.