Home / 105,486.40-158,230.26-43,156.90

Finding the Fourth Proportional to 105,486.40, 158,230.26 and 43,156.90

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Solution

The fourth proportional to 105,486.40, 158,230.26 and 43,156.90 is: 64,735.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,486.40 : 158,230.26 = 43,156.90 : x
  2. Step 2: Convert to fraction form
    105,486.40/158,230.26 = 43,156.90/x
  3. Step 3: Cross multiply
    105,486.40x = 158,230.26 × 43,156.90
  4. Step 4: Simplify right side
    105,486.40x = 6,828,727,507.79
  5. Step 5: Solve for x
    x = 6,828,727,507.79/105,486.40
  6. Step 6: Final answer
    x = 64,735.62

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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.