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Finding the Fourth Proportional to 103,018.80, 154,333.80 and 96,020.40

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Solution

The fourth proportional to 103,018.80, 154,333.80 and 96,020.40 is: 143,849.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,018.80 : 154,333.80 = 96,020.40 : x
  2. Step 2: Convert to fraction form
    103,018.80/154,333.80 = 96,020.40/x
  3. Step 3: Cross multiply
    103,018.80x = 154,333.80 × 96,020.40
  4. Step 4: Simplify right side
    103,018.80x = 14,819,193,209.52
  5. Step 5: Solve for x
    x = 14,819,193,209.52/103,018.80
  6. Step 6: Final answer
    x = 143,849.41

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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.