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Finding the Fourth Proportional to 102,950.60, 154,411.25 and 39,800.45

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Solution

The fourth proportional to 102,950.60, 154,411.25 and 39,800.45 is: 59,695.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,950.60 : 154,411.25 = 39,800.45 : x
  2. Step 2: Convert to fraction form
    102,950.60/154,411.25 = 39,800.45/x
  3. Step 3: Cross multiply
    102,950.60x = 154,411.25 × 39,800.45
  4. Step 4: Simplify right side
    102,950.60x = 6,145,637,422.09
  5. Step 5: Solve for x
    x = 6,145,637,422.09/102,950.60
  6. Step 6: Final answer
    x = 59,695.02

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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.