Home / 102,115.04-140,917.97-56,173.70

Finding the Fourth Proportional to 102,115.04, 140,917.97 and 56,173.70

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Solution

The fourth proportional to 102,115.04, 140,917.97 and 56,173.70 is: 77,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,115.04 : 140,917.97 = 56,173.70 : x
  2. Step 2: Convert to fraction form
    102,115.04/140,917.97 = 56,173.70/x
  3. Step 3: Cross multiply
    102,115.04x = 140,917.97 × 56,173.70
  4. Step 4: Simplify right side
    102,115.04x = 7,915,883,066.80
  5. Step 5: Solve for x
    x = 7,915,883,066.80/102,115.04
  6. Step 6: Final answer
    x = 77,519.27

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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.