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Finding the Fourth Proportional to 148,141.68, 204,440.40 and 81,073.68

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Solution

The fourth proportional to 148,141.68, 204,440.40 and 81,073.68 is: 111,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,141.68 : 204,440.40 = 81,073.68 : x
  2. Step 2: Convert to fraction form
    148,141.68/204,440.40 = 81,073.68/x
  3. Step 3: Cross multiply
    148,141.68x = 204,440.40 × 81,073.68
  4. Step 4: Simplify right side
    148,141.68x = 16,574,735,568.67
  5. Step 5: Solve for x
    x = 16,574,735,568.67/148,141.68
  6. Step 6: Final answer
    x = 111,884.35

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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.