Home / 105,314.24-157,980-52,719.68

Finding the Fourth Proportional to 105,314.24, 157,980 and 52,719.68

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Solution

The fourth proportional to 105,314.24, 157,980 and 52,719.68 is: 79,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,314.24 : 157,980 = 52,719.68 : x
  2. Step 2: Convert to fraction form
    105,314.24/157,980 = 52,719.68/x
  3. Step 3: Cross multiply
    105,314.24x = 157,980 × 52,719.68
  4. Step 4: Simplify right side
    105,314.24x = 8,328,655,046.40
  5. Step 5: Solve for x
    x = 8,328,655,046.40/105,314.24
  6. Step 6: Final answer
    x = 79,083.85

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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.