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Finding the Fourth Proportional to 103,292.76, 154,814.46 and 53,345.64

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Solution

The fourth proportional to 103,292.76, 154,814.46 and 53,345.64 is: 79,954.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,292.76 : 154,814.46 = 53,345.64 : x
  2. Step 2: Convert to fraction form
    103,292.76/154,814.46 = 53,345.64/x
  3. Step 3: Cross multiply
    103,292.76x = 154,814.46 × 53,345.64
  4. Step 4: Simplify right side
    103,292.76x = 8,258,676,449.95
  5. Step 5: Solve for x
    x = 8,258,676,449.95/103,292.76
  6. Step 6: Final answer
    x = 79,954.07

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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.