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Finding the Fourth Proportional to 103,089.20, 154,648.20 and 43,924.40

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Solution

The fourth proportional to 103,089.20, 154,648.20 and 43,924.40 is: 65,892.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,089.20 : 154,648.20 = 43,924.40 : x
  2. Step 2: Convert to fraction form
    103,089.20/154,648.20 = 43,924.40/x
  3. Step 3: Cross multiply
    103,089.20x = 154,648.20 × 43,924.40
  4. Step 4: Simplify right side
    103,089.20x = 6,792,829,396.08
  5. Step 5: Solve for x
    x = 6,792,829,396.08/103,089.20
  6. Step 6: Final answer
    x = 65,892.74

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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.