Home / 107,864.20-161,796.30-98,187.40

Finding the Fourth Proportional to 107,864.20, 161,796.30 and 98,187.40

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Solution

The fourth proportional to 107,864.20, 161,796.30 and 98,187.40 is: 147,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,864.20 : 161,796.30 = 98,187.40 : x
  2. Step 2: Convert to fraction form
    107,864.20/161,796.30 = 98,187.40/x
  3. Step 3: Cross multiply
    107,864.20x = 161,796.30 × 98,187.40
  4. Step 4: Simplify right side
    107,864.20x = 15,886,358,026.62
  5. Step 5: Solve for x
    x = 15,886,358,026.62/107,864.20
  6. Step 6: Final answer
    x = 147,281.10

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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.