Home / 102,313.07-141,213.80-68,759.63

Finding the Fourth Proportional to 102,313.07, 141,213.80 and 68,759.63

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Solution

The fourth proportional to 102,313.07, 141,213.80 and 68,759.63 is: 94,902.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,313.07 : 141,213.80 = 68,759.63 : x
  2. Step 2: Convert to fraction form
    102,313.07/141,213.80 = 68,759.63/x
  3. Step 3: Cross multiply
    102,313.07x = 141,213.80 × 68,759.63
  4. Step 4: Simplify right side
    102,313.07x = 9,709,808,104.72
  5. Step 5: Solve for x
    x = 9,709,808,104.72/102,313.07
  6. Step 6: Final answer
    x = 94,902.91

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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.