Home / 102,161.70-140,984.01-56,844.90

Finding the Fourth Proportional to 102,161.70, 140,984.01 and 56,844.90

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Solution

The fourth proportional to 102,161.70, 140,984.01 and 56,844.90 is: 78,446.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,161.70 : 140,984.01 = 56,844.90 : x
  2. Step 2: Convert to fraction form
    102,161.70/140,984.01 = 56,844.90/x
  3. Step 3: Cross multiply
    102,161.70x = 140,984.01 × 56,844.90
  4. Step 4: Simplify right side
    102,161.70x = 8,014,221,950.05
  5. Step 5: Solve for x
    x = 8,014,221,950.05/102,161.70
  6. Step 6: Final answer
    x = 78,446.44

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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.