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Finding the Fourth Proportional to 146,020.94, 201,461.70 and 81,479.74

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Solution

The fourth proportional to 146,020.94, 201,461.70 and 81,479.74 is: 112,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,020.94 : 201,461.70 = 81,479.74 : x
  2. Step 2: Convert to fraction form
    146,020.94/201,461.70 = 81,479.74/x
  3. Step 3: Cross multiply
    146,020.94x = 201,461.70 × 81,479.74
  4. Step 4: Simplify right side
    146,020.94x = 16,415,046,935.96
  5. Step 5: Solve for x
    x = 16,415,046,935.96/146,020.94
  6. Step 6: Final answer
    x = 112,415.71

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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.