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Finding the Fourth Proportional to 138,406.04, 207,571.74 and 58,444.54

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Solution

The fourth proportional to 138,406.04, 207,571.74 and 58,444.54 is: 87,651.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,406.04 : 207,571.74 = 58,444.54 : x
  2. Step 2: Convert to fraction form
    138,406.04/207,571.74 = 58,444.54/x
  3. Step 3: Cross multiply
    138,406.04x = 207,571.74 × 58,444.54
  4. Step 4: Simplify right side
    138,406.04x = 12,131,434,287.58
  5. Step 5: Solve for x
    x = 12,131,434,287.58/138,406.04
  6. Step 6: Final answer
    x = 87,651.05

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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.