Home / 107,720.35-161,606.16-54,281.02

Finding the Fourth Proportional to 107,720.35, 161,606.16 and 54,281.02

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Solution

The fourth proportional to 107,720.35, 161,606.16 and 54,281.02 is: 81,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,720.35 : 161,606.16 = 54,281.02 : x
  2. Step 2: Convert to fraction form
    107,720.35/161,606.16 = 54,281.02/x
  3. Step 3: Cross multiply
    107,720.35x = 161,606.16 × 54,281.02
  4. Step 4: Simplify right side
    107,720.35x = 8,772,147,203.08
  5. Step 5: Solve for x
    x = 8,772,147,203.08/107,720.35
  6. Step 6: Final answer
    x = 81,434.45

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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.