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Finding the Fourth Proportional to 109,873.71, 151,619.72 and 62,136.63

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Solution

The fourth proportional to 109,873.71, 151,619.72 and 62,136.63 is: 85,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,873.71 : 151,619.72 = 62,136.63 : x
  2. Step 2: Convert to fraction form
    109,873.71/151,619.72 = 62,136.63/x
  3. Step 3: Cross multiply
    109,873.71x = 151,619.72 × 62,136.63
  4. Step 4: Simplify right side
    109,873.71x = 9,421,138,131.66
  5. Step 5: Solve for x
    x = 9,421,138,131.66/109,873.71
  6. Step 6: Final answer
    x = 85,745.15

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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.