Home / 107,731.62-148,647.09-62,406.90

Finding the Fourth Proportional to 107,731.62, 148,647.09 and 62,406.90

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Solution

The fourth proportional to 107,731.62, 148,647.09 and 62,406.90 is: 86,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,731.62 : 148,647.09 = 62,406.90 : x
  2. Step 2: Convert to fraction form
    107,731.62/148,647.09 = 62,406.90/x
  3. Step 3: Cross multiply
    107,731.62x = 148,647.09 × 62,406.90
  4. Step 4: Simplify right side
    107,731.62x = 9,276,604,080.92
  5. Step 5: Solve for x
    x = 9,276,604,080.92/107,731.62
  6. Step 6: Final answer
    x = 86,108.46

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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.