Home / 107,330.40-161,164.08-90,905.76

Finding the Fourth Proportional to 107,330.40, 161,164.08 and 90,905.76

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Solution

The fourth proportional to 107,330.40, 161,164.08 and 90,905.76 is: 136,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,330.40 : 161,164.08 = 90,905.76 : x
  2. Step 2: Convert to fraction form
    107,330.40/161,164.08 = 90,905.76/x
  3. Step 3: Cross multiply
    107,330.40x = 161,164.08 × 90,905.76
  4. Step 4: Simplify right side
    107,330.40x = 14,650,743,177.10
  5. Step 5: Solve for x
    x = 14,650,743,177.10/107,330.40
  6. Step 6: Final answer
    x = 136,501.34

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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.