Home / 102,415.15-141,332.32-57,093.50

Finding the Fourth Proportional to 102,415.15, 141,332.32 and 57,093.50

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Solution

The fourth proportional to 102,415.15, 141,332.32 and 57,093.50 is: 78,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,415.15 : 141,332.32 = 57,093.50 : x
  2. Step 2: Convert to fraction form
    102,415.15/141,332.32 = 57,093.50/x
  3. Step 3: Cross multiply
    102,415.15x = 141,332.32 × 57,093.50
  4. Step 4: Simplify right side
    102,415.15x = 8,069,156,811.92
  5. Step 5: Solve for x
    x = 8,069,156,811.92/102,415.15
  6. Step 6: Final answer
    x = 78,788.71

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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.