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Finding the Fourth Proportional to 97,703.80, 146,166.90 and 84,700.60

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Solution

The fourth proportional to 97,703.80, 146,166.90 and 84,700.60 is: 126,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,703.80 : 146,166.90 = 84,700.60 : x
  2. Step 2: Convert to fraction form
    97,703.80/146,166.90 = 84,700.60/x
  3. Step 3: Cross multiply
    97,703.80x = 146,166.90 × 84,700.60
  4. Step 4: Simplify right side
    97,703.80x = 12,380,424,130.14
  5. Step 5: Solve for x
    x = 12,380,424,130.14/97,703.80
  6. Step 6: Final answer
    x = 126,713.84

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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.