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Finding the Fourth Proportional to 119,690.68, 165,180.53 and 65,975.57

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Solution

The fourth proportional to 119,690.68, 165,180.53 and 65,975.57 is: 91,050.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,690.68 : 165,180.53 = 65,975.57 : x
  2. Step 2: Convert to fraction form
    119,690.68/165,180.53 = 65,975.57/x
  3. Step 3: Cross multiply
    119,690.68x = 165,180.53 × 65,975.57
  4. Step 4: Simplify right side
    119,690.68x = 10,897,879,289.77
  5. Step 5: Solve for x
    x = 10,897,879,289.77/119,690.68
  6. Step 6: Final answer
    x = 91,050.36

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1.5x scale

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.