Home / 120,094.30-165,667.44-74,765.08

Finding the Fourth Proportional to 120,094.30, 165,667.44 and 74,765.08

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Solution

The fourth proportional to 120,094.30, 165,667.44 and 74,765.08 is: 103,136.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,094.30 : 165,667.44 = 74,765.08 : x
  2. Step 2: Convert to fraction form
    120,094.30/165,667.44 = 74,765.08/x
  3. Step 3: Cross multiply
    120,094.30x = 165,667.44 × 74,765.08
  4. Step 4: Simplify right side
    120,094.30x = 12,386,139,405.00
  5. Step 5: Solve for x
    x = 12,386,139,405.00/120,094.30
  6. Step 6: Final answer
    x = 103,136.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.