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Finding the Fourth Proportional to 101,987.32, 152,896.74 and 45,020.66

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Solution

The fourth proportional to 101,987.32, 152,896.74 and 45,020.66 is: 67,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,987.32 : 152,896.74 = 45,020.66 : x
  2. Step 2: Convert to fraction form
    101,987.32/152,896.74 = 45,020.66/x
  3. Step 3: Cross multiply
    101,987.32x = 152,896.74 × 45,020.66
  4. Step 4: Simplify right side
    101,987.32x = 6,883,512,146.65
  5. Step 5: Solve for x
    x = 6,883,512,146.65/101,987.32
  6. Step 6: Final answer
    x = 67,493.80

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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.