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Finding the Fourth Proportional to 97,998.40, 146,968.80 and 38,814.40

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Solution

The fourth proportional to 97,998.40, 146,968.80 and 38,814.40 is: 58,210.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,998.40 : 146,968.80 = 38,814.40 : x
  2. Step 2: Convert to fraction form
    97,998.40/146,968.80 = 38,814.40/x
  3. Step 3: Cross multiply
    97,998.40x = 146,968.80 × 38,814.40
  4. Step 4: Simplify right side
    97,998.40x = 5,704,505,790.72
  5. Step 5: Solve for x
    x = 5,704,505,790.72/97,998.40
  6. Step 6: Final answer
    x = 58,210.19

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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.