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Finding the Fourth Proportional to 101,430.66, 152,101.60 and 48,137.91

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Solution

The fourth proportional to 101,430.66, 152,101.60 and 48,137.91 is: 72,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,430.66 : 152,101.60 = 48,137.91 : x
  2. Step 2: Convert to fraction form
    101,430.66/152,101.60 = 48,137.91/x
  3. Step 3: Cross multiply
    101,430.66x = 152,101.60 × 48,137.91
  4. Step 4: Simplify right side
    101,430.66x = 7,321,853,131.66
  5. Step 5: Solve for x
    x = 7,321,853,131.66/101,430.66
  6. Step 6: Final answer
    x = 72,185.80

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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.