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Finding the Fourth Proportional to 101,670.30, 140,305.03 and 56,351.21

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Solution

The fourth proportional to 101,670.30, 140,305.03 and 56,351.21 is: 77,764.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,670.30 : 140,305.03 = 56,351.21 : x
  2. Step 2: Convert to fraction form
    101,670.30/140,305.03 = 56,351.21/x
  3. Step 3: Cross multiply
    101,670.30x = 140,305.03 × 56,351.21
  4. Step 4: Simplify right side
    101,670.30x = 7,906,357,367.18
  5. Step 5: Solve for x
    x = 7,906,357,367.18/101,670.30
  6. Step 6: Final answer
    x = 77,764.67

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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.