Home / 105,089.14-145,041.78-62,650.36

Finding the Fourth Proportional to 105,089.14, 145,041.78 and 62,650.36

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Solution

The fourth proportional to 105,089.14, 145,041.78 and 62,650.36 is: 86,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,089.14 : 145,041.78 = 62,650.36 : x
  2. Step 2: Convert to fraction form
    105,089.14/145,041.78 = 62,650.36/x
  3. Step 3: Cross multiply
    105,089.14x = 145,041.78 × 62,650.36
  4. Step 4: Simplify right side
    105,089.14x = 9,086,919,732.04
  5. Step 5: Solve for x
    x = 9,086,919,732.04/105,089.14
  6. Step 6: Final answer
    x = 86,468.68

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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.