Home / 91,718.40-137,577.60-70,982.40

Finding the Fourth Proportional to 91,718.40, 137,577.60 and 70,982.40

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Solution

The fourth proportional to 91,718.40, 137,577.60 and 70,982.40 is: 106,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,718.40 : 137,577.60 = 70,982.40 : x
  2. Step 2: Convert to fraction form
    91,718.40/137,577.60 = 70,982.40/x
  3. Step 3: Cross multiply
    91,718.40x = 137,577.60 × 70,982.40
  4. Step 4: Simplify right side
    91,718.40x = 9,765,588,234.24
  5. Step 5: Solve for x
    x = 9,765,588,234.24/91,718.40
  6. Step 6: Final answer
    x = 106,473.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.