Home / 102,429.16-141,352.80-57,110

Finding the Fourth Proportional to 102,429.16, 141,352.80 and 57,110

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Solution

The fourth proportional to 102,429.16, 141,352.80 and 57,110 is: 78,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,429.16 : 141,352.80 = 57,110 : x
  2. Step 2: Convert to fraction form
    102,429.16/141,352.80 = 57,110/x
  3. Step 3: Cross multiply
    102,429.16x = 141,352.80 × 57,110
  4. Step 4: Simplify right side
    102,429.16x = 8,072,658,408.00
  5. Step 5: Solve for x
    x = 8,072,658,408.00/102,429.16
  6. Step 6: Final answer
    x = 78,812.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.