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Finding the Fourth Proportional to 98,801.80, 148,202.70 and 39,646.60

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Solution

The fourth proportional to 98,801.80, 148,202.70 and 39,646.60 is: 59,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,801.80 : 148,202.70 = 39,646.60 : x
  2. Step 2: Convert to fraction form
    98,801.80/148,202.70 = 39,646.60/x
  3. Step 3: Cross multiply
    98,801.80x = 148,202.70 × 39,646.60
  4. Step 4: Simplify right side
    98,801.80x = 5,875,733,165.82
  5. Step 5: Solve for x
    x = 5,875,733,165.82/98,801.80
  6. Step 6: Final answer
    x = 59,469.90

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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.