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Finding the Fourth Proportional to 107,509.86, 148,383 and 62,181.54

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Solution

The fourth proportional to 107,509.86, 148,383 and 62,181.54 is: 85,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,509.86 : 148,383 = 62,181.54 : x
  2. Step 2: Convert to fraction form
    107,509.86/148,383 = 62,181.54/x
  3. Step 3: Cross multiply
    107,509.86x = 148,383 × 62,181.54
  4. Step 4: Simplify right side
    107,509.86x = 9,226,683,449.82
  5. Step 5: Solve for x
    x = 9,226,683,449.82/107,509.86
  6. Step 6: Final answer
    x = 85,821.74

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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.