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Finding the Fourth Proportional to 103,320.32, 154,926.63 and 36,750.78

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Solution

The fourth proportional to 103,320.32, 154,926.63 and 36,750.78 is: 55,107.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,320.32 : 154,926.63 = 36,750.78 : x
  2. Step 2: Convert to fraction form
    103,320.32/154,926.63 = 36,750.78/x
  3. Step 3: Cross multiply
    103,320.32x = 154,926.63 × 36,750.78
  4. Step 4: Simplify right side
    103,320.32x = 5,693,674,495.27
  5. Step 5: Solve for x
    x = 5,693,674,495.27/103,320.32
  6. Step 6: Final answer
    x = 55,107.02

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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.