Home / 105,217.11-157,847.13-38,657.88

Finding the Fourth Proportional to 105,217.11, 157,847.13 and 38,657.88

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Solution

The fourth proportional to 105,217.11, 157,847.13 and 38,657.88 is: 57,994.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,217.11 : 157,847.13 = 38,657.88 : x
  2. Step 2: Convert to fraction form
    105,217.11/157,847.13 = 38,657.88/x
  3. Step 3: Cross multiply
    105,217.11x = 157,847.13 × 38,657.88
  4. Step 4: Simplify right side
    105,217.11x = 6,102,035,409.88
  5. Step 5: Solve for x
    x = 6,102,035,409.88/105,217.11
  6. Step 6: Final answer
    x = 57,994.71

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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.