Home / 107,985.14-148,968.69-70,245.62

Finding the Fourth Proportional to 107,985.14, 148,968.69 and 70,245.62

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Solution

The fourth proportional to 107,985.14, 148,968.69 and 70,245.62 is: 96,905.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,985.14 : 148,968.69 = 70,245.62 : x
  2. Step 2: Convert to fraction form
    107,985.14/148,968.69 = 70,245.62/x
  3. Step 3: Cross multiply
    107,985.14x = 148,968.69 × 70,245.62
  4. Step 4: Simplify right side
    107,985.14x = 10,464,397,989.64
  5. Step 5: Solve for x
    x = 10,464,397,989.64/107,985.14
  6. Step 6: Final answer
    x = 96,905.91

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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.