Home / 105,238.67-145,236.05-59,920.61

Finding the Fourth Proportional to 105,238.67, 145,236.05 and 59,920.61

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Solution

The fourth proportional to 105,238.67, 145,236.05 and 59,920.61 is: 82,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,238.67 : 145,236.05 = 59,920.61 : x
  2. Step 2: Convert to fraction form
    105,238.67/145,236.05 = 59,920.61/x
  3. Step 3: Cross multiply
    105,238.67x = 145,236.05 × 59,920.61
  4. Step 4: Simplify right side
    105,238.67x = 8,702,632,810.13
  5. Step 5: Solve for x
    x = 8,702,632,810.13/105,238.67
  6. Step 6: Final answer
    x = 82,694.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.