Home / 117,724.60-162,459.30-66,747

Finding the Fourth Proportional to 117,724.60, 162,459.30 and 66,747

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Solution

The fourth proportional to 117,724.60, 162,459.30 and 66,747 is: 92,110.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,724.60 : 162,459.30 = 66,747 : x
  2. Step 2: Convert to fraction form
    117,724.60/162,459.30 = 66,747/x
  3. Step 3: Cross multiply
    117,724.60x = 162,459.30 × 66,747
  4. Step 4: Simplify right side
    117,724.60x = 10,843,670,897.10
  5. Step 5: Solve for x
    x = 10,843,670,897.10/117,724.60
  6. Step 6: Final answer
    x = 92,110.49

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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.