Home / 107,343.92-161,015.88-40,768.40

Finding the Fourth Proportional to 107,343.92, 161,015.88 and 40,768.40

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Solution

The fourth proportional to 107,343.92, 161,015.88 and 40,768.40 is: 61,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,343.92 : 161,015.88 = 40,768.40 : x
  2. Step 2: Convert to fraction form
    107,343.92/161,015.88 = 40,768.40/x
  3. Step 3: Cross multiply
    107,343.92x = 161,015.88 × 40,768.40
  4. Step 4: Simplify right side
    107,343.92x = 6,564,358,997.11
  5. Step 5: Solve for x
    x = 6,564,358,997.11/107,343.92
  6. Step 6: Final answer
    x = 61,152.60

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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.