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Finding the Fourth Proportional to 137,989.44, 207,064.46 and 58,021.61

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Solution

The fourth proportional to 137,989.44, 207,064.46 and 58,021.61 is: 87,066.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,989.44 : 207,064.46 = 58,021.61 : x
  2. Step 2: Convert to fraction form
    137,989.44/207,064.46 = 58,021.61/x
  3. Step 3: Cross multiply
    137,989.44x = 207,064.46 × 58,021.61
  4. Step 4: Simplify right side
    137,989.44x = 12,014,212,017.55
  5. Step 5: Solve for x
    x = 12,014,212,017.55/137,989.44
  6. Step 6: Final answer
    x = 87,066.17

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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.