Home / 102,310.34-141,190.70-56,991.38

Finding the Fourth Proportional to 102,310.34, 141,190.70 and 56,991.38

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Solution

The fourth proportional to 102,310.34, 141,190.70 and 56,991.38 is: 78,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,310.34 : 141,190.70 = 56,991.38 : x
  2. Step 2: Convert to fraction form
    102,310.34/141,190.70 = 56,991.38/x
  3. Step 3: Cross multiply
    102,310.34x = 141,190.70 × 56,991.38
  4. Step 4: Simplify right side
    102,310.34x = 8,046,651,845.26
  5. Step 5: Solve for x
    x = 8,046,651,845.26/102,310.34
  6. Step 6: Final answer
    x = 78,649.45

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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.