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Finding the Fourth Proportional to 97,801.80, 146,799.90 and 47,938.20

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Solution

The fourth proportional to 97,801.80, 146,799.90 and 47,938.20 is: 71,954.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,801.80 : 146,799.90 = 47,938.20 : x
  2. Step 2: Convert to fraction form
    97,801.80/146,799.90 = 47,938.20/x
  3. Step 3: Cross multiply
    97,801.80x = 146,799.90 × 47,938.20
  4. Step 4: Simplify right side
    97,801.80x = 7,037,322,966.18
  5. Step 5: Solve for x
    x = 7,037,322,966.18/97,801.80
  6. Step 6: Final answer
    x = 71,954.94

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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.