Home / 105,619.59-158,421.69-39,028.68

Finding the Fourth Proportional to 105,619.59, 158,421.69 and 39,028.68

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Solution

The fourth proportional to 105,619.59, 158,421.69 and 39,028.68 is: 58,540.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,619.59 : 158,421.69 = 39,028.68 : x
  2. Step 2: Convert to fraction form
    105,619.59/158,421.69 = 39,028.68/x
  3. Step 3: Cross multiply
    105,619.59x = 158,421.69 × 39,028.68
  4. Step 4: Simplify right side
    105,619.59x = 6,182,989,444.07
  5. Step 5: Solve for x
    x = 6,182,989,444.07/105,619.59
  6. Step 6: Final answer
    x = 58,540.18

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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.