Home / 105,314.14-157,992.38-38,754.62

Finding the Fourth Proportional to 105,314.14, 157,992.38 and 38,754.62

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Solution

The fourth proportional to 105,314.14, 157,992.38 and 38,754.62 is: 58,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,314.14 : 157,992.38 = 38,754.62 : x
  2. Step 2: Convert to fraction form
    105,314.14/157,992.38 = 38,754.62/x
  3. Step 3: Cross multiply
    105,314.14x = 157,992.38 × 38,754.62
  4. Step 4: Simplify right side
    105,314.14x = 6,122,934,649.80
  5. Step 5: Solve for x
    x = 6,122,934,649.80/105,314.14
  6. Step 6: Final answer
    x = 58,139.72

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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.