Home / 107,864.47-161,785.77-28,968.45

Finding the Fourth Proportional to 107,864.47, 161,785.77 and 28,968.45

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Solution

The fourth proportional to 107,864.47, 161,785.77 and 28,968.45 is: 43,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,864.47 : 161,785.77 = 28,968.45 : x
  2. Step 2: Convert to fraction form
    107,864.47/161,785.77 = 28,968.45/x
  3. Step 3: Cross multiply
    107,864.47x = 161,785.77 × 28,968.45
  4. Step 4: Simplify right side
    107,864.47x = 4,686,682,988.96
  5. Step 5: Solve for x
    x = 4,686,682,988.96/107,864.47
  6. Step 6: Final answer
    x = 43,449.74

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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.