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Finding the Fourth Proportional to 146,284.18, 201,871 and 79,216.18

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Solution

The fourth proportional to 146,284.18, 201,871 and 79,216.18 is: 109,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,284.18 : 201,871 = 79,216.18 : x
  2. Step 2: Convert to fraction form
    146,284.18/201,871 = 79,216.18/x
  3. Step 3: Cross multiply
    146,284.18x = 201,871 × 79,216.18
  4. Step 4: Simplify right side
    146,284.18x = 15,991,449,472.78
  5. Step 5: Solve for x
    x = 15,991,449,472.78/146,284.18
  6. Step 6: Final answer
    x = 109,317.70

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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.