Home / 119,400.62-164,771.64-65,685.74

Finding the Fourth Proportional to 119,400.62, 164,771.64 and 65,685.74

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Solution

The fourth proportional to 119,400.62, 164,771.64 and 65,685.74 is: 90,645.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,400.62 : 164,771.64 = 65,685.74 : x
  2. Step 2: Convert to fraction form
    119,400.62/164,771.64 = 65,685.74/x
  3. Step 3: Cross multiply
    119,400.62x = 164,771.64 × 65,685.74
  4. Step 4: Simplify right side
    119,400.62x = 10,823,146,280.56
  5. Step 5: Solve for x
    x = 10,823,146,280.56/119,400.62
  6. Step 6: Final answer
    x = 90,645.65

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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.