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Finding the Fourth Proportional to 100,989.47, 151,510.07 and 37,810.49

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Solution

The fourth proportional to 100,989.47, 151,510.07 and 37,810.49 is: 56,725.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,989.47 : 151,510.07 = 37,810.49 : x
  2. Step 2: Convert to fraction form
    100,989.47/151,510.07 = 37,810.49/x
  3. Step 3: Cross multiply
    100,989.47x = 151,510.07 × 37,810.49
  4. Step 4: Simplify right side
    100,989.47x = 5,728,669,040.03
  5. Step 5: Solve for x
    x = 5,728,669,040.03/100,989.47
  6. Step 6: Final answer
    x = 56,725.41

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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.