Home / 102,063.28-140,839.35-56,738.51

Finding the Fourth Proportional to 102,063.28, 140,839.35 and 56,738.51

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Solution

The fourth proportional to 102,063.28, 140,839.35 and 56,738.51 is: 78,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,063.28 : 140,839.35 = 56,738.51 : x
  2. Step 2: Convert to fraction form
    102,063.28/140,839.35 = 56,738.51/x
  3. Step 3: Cross multiply
    102,063.28x = 140,839.35 × 56,738.51
  4. Step 4: Simplify right side
    102,063.28x = 7,991,014,641.25
  5. Step 5: Solve for x
    x = 7,991,014,641.25/102,063.28
  6. Step 6: Final answer
    x = 78,294.70

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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.