Home / 120,287.48-165,994.40-66,572.52

Finding the Fourth Proportional to 120,287.48, 165,994.40 and 66,572.52

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Solution

The fourth proportional to 120,287.48, 165,994.40 and 66,572.52 is: 91,868.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,287.48 : 165,994.40 = 66,572.52 : x
  2. Step 2: Convert to fraction form
    120,287.48/165,994.40 = 66,572.52/x
  3. Step 3: Cross multiply
    120,287.48x = 165,994.40 × 66,572.52
  4. Step 4: Simplify right side
    120,287.48x = 11,050,665,513.89
  5. Step 5: Solve for x
    x = 11,050,665,513.89/120,287.48
  6. Step 6: Final answer
    x = 91,868.79

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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.