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Finding the Fourth Proportional to 181,803.90, 272,669.40 and 87,033.90

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Solution

The fourth proportional to 181,803.90, 272,669.40 and 87,033.90 is: 130,533.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,803.90 : 272,669.40 = 87,033.90 : x
  2. Step 2: Convert to fraction form
    181,803.90/272,669.40 = 87,033.90/x
  3. Step 3: Cross multiply
    181,803.90x = 272,669.40 × 87,033.90
  4. Step 4: Simplify right side
    181,803.90x = 23,731,481,292.66
  5. Step 5: Solve for x
    x = 23,731,481,292.66/181,803.90
  6. Step 6: Final answer
    x = 130,533.40

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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.