Home / 119,500.11-164,909.52-65,783.75

Finding the Fourth Proportional to 119,500.11, 164,909.52 and 65,783.75

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Solution

The fourth proportional to 119,500.11, 164,909.52 and 65,783.75 is: 90,781.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,500.11 : 164,909.52 = 65,783.75 : x
  2. Step 2: Convert to fraction form
    119,500.11/164,909.52 = 65,783.75/x
  3. Step 3: Cross multiply
    119,500.11x = 164,909.52 × 65,783.75
  4. Step 4: Simplify right side
    119,500.11x = 10,848,365,811.75
  5. Step 5: Solve for x
    x = 10,848,365,811.75/119,500.11
  6. Step 6: Final answer
    x = 90,781.22

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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.