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Finding the Fourth Proportional to 140,081.58, 210,122.37 and 77,300.73

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Solution

The fourth proportional to 140,081.58, 210,122.37 and 77,300.73 is: 115,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,081.58 : 210,122.37 = 77,300.73 : x
  2. Step 2: Convert to fraction form
    140,081.58/210,122.37 = 77,300.73/x
  3. Step 3: Cross multiply
    140,081.58x = 210,122.37 × 77,300.73
  4. Step 4: Simplify right side
    140,081.58x = 16,242,612,264.22
  5. Step 5: Solve for x
    x = 16,242,612,264.22/140,081.58
  6. Step 6: Final answer
    x = 115,951.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.