Home / 102,020.02-140,778.66-56,695.15

Finding the Fourth Proportional to 102,020.02, 140,778.66 and 56,695.15

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Solution

The fourth proportional to 102,020.02, 140,778.66 and 56,695.15 is: 78,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,020.02 : 140,778.66 = 56,695.15 : x
  2. Step 2: Convert to fraction form
    102,020.02/140,778.66 = 56,695.15/x
  3. Step 3: Cross multiply
    102,020.02x = 140,778.66 × 56,695.15
  4. Step 4: Simplify right side
    102,020.02x = 7,981,467,245.50
  5. Step 5: Solve for x
    x = 7,981,467,245.50/102,020.02
  6. Step 6: Final answer
    x = 78,234.32

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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.