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Finding the Fourth Proportional to 171,119.68, 256,465.68 and 82,349.35

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Solution

The fourth proportional to 171,119.68, 256,465.68 and 82,349.35 is: 123,421.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,119.68 : 256,465.68 = 82,349.35 : x
  2. Step 2: Convert to fraction form
    171,119.68/256,465.68 = 82,349.35/x
  3. Step 3: Cross multiply
    171,119.68x = 256,465.68 × 82,349.35
  4. Step 4: Simplify right side
    171,119.68x = 21,119,782,045.31
  5. Step 5: Solve for x
    x = 21,119,782,045.31/171,119.68
  6. Step 6: Final answer
    x = 123,421.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.