Home / 107,457.28-148,282.36-62,138.20

Finding the Fourth Proportional to 107,457.28, 148,282.36 and 62,138.20

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Solution

The fourth proportional to 107,457.28, 148,282.36 and 62,138.20 is: 85,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,457.28 : 148,282.36 = 62,138.20 : x
  2. Step 2: Convert to fraction form
    107,457.28/148,282.36 = 62,138.20/x
  3. Step 3: Cross multiply
    107,457.28x = 148,282.36 × 62,138.20
  4. Step 4: Simplify right side
    107,457.28x = 9,213,998,942.15
  5. Step 5: Solve for x
    x = 9,213,998,942.15/107,457.28
  6. Step 6: Final answer
    x = 85,745.69

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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.