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Finding the Fourth Proportional to 106,662.80, 159,605.40 and 97,331.60

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Solution

The fourth proportional to 106,662.80, 159,605.40 and 97,331.60 is: 145,642.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,662.80 : 159,605.40 = 97,331.60 : x
  2. Step 2: Convert to fraction form
    106,662.80/159,605.40 = 97,331.60/x
  3. Step 3: Cross multiply
    106,662.80x = 159,605.40 × 97,331.60
  4. Step 4: Simplify right side
    106,662.80x = 15,534,648,950.64
  5. Step 5: Solve for x
    x = 15,534,648,950.64/106,662.80
  6. Step 6: Final answer
    x = 145,642.61

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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.