Home / 105,818.70-158,728.05-82,462.62

Finding the Fourth Proportional to 105,818.70, 158,728.05 and 82,462.62

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Solution

The fourth proportional to 105,818.70, 158,728.05 and 82,462.62 is: 123,693.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,818.70 : 158,728.05 = 82,462.62 : x
  2. Step 2: Convert to fraction form
    105,818.70/158,728.05 = 82,462.62/x
  3. Step 3: Cross multiply
    105,818.70x = 158,728.05 × 82,462.62
  4. Step 4: Simplify right side
    105,818.70x = 13,089,130,870.49
  5. Step 5: Solve for x
    x = 13,089,130,870.49/105,818.70
  6. Step 6: Final answer
    x = 123,693.93

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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.