Home / 102,703.32-141,716.48-57,375.63

Finding the Fourth Proportional to 102,703.32, 141,716.48 and 57,375.63

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Solution

The fourth proportional to 102,703.32, 141,716.48 and 57,375.63 is: 79,170.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,703.32 : 141,716.48 = 57,375.63 : x
  2. Step 2: Convert to fraction form
    102,703.32/141,716.48 = 57,375.63/x
  3. Step 3: Cross multiply
    102,703.32x = 141,716.48 × 57,375.63
  4. Step 4: Simplify right side
    102,703.32x = 8,131,072,034.50
  5. Step 5: Solve for x
    x = 8,131,072,034.50/102,703.32
  6. Step 6: Final answer
    x = 79,170.49

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1.5x scale

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.