Home / 105,842.18-158,721.89-38,358.20

Finding the Fourth Proportional to 105,842.18, 158,721.89 and 38,358.20

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Solution

The fourth proportional to 105,842.18, 158,721.89 and 38,358.20 is: 57,522.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,842.18 : 158,721.89 = 38,358.20 : x
  2. Step 2: Convert to fraction form
    105,842.18/158,721.89 = 38,358.20/x
  3. Step 3: Cross multiply
    105,842.18x = 158,721.89 × 38,358.20
  4. Step 4: Simplify right side
    105,842.18x = 6,088,285,303.28
  5. Step 5: Solve for x
    x = 6,088,285,303.28/105,842.18
  6. Step 6: Final answer
    x = 57,522.30

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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.