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Finding the Fourth Proportional to 181,807.09, 272,710.74 and 87,015.01

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Solution

The fourth proportional to 181,807.09, 272,710.74 and 87,015.01 is: 130,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,807.09 : 272,710.74 = 87,015.01 : x
  2. Step 2: Convert to fraction form
    181,807.09/272,710.74 = 87,015.01/x
  3. Step 3: Cross multiply
    181,807.09x = 272,710.74 × 87,015.01
  4. Step 4: Simplify right side
    181,807.09x = 23,729,927,768.21
  5. Step 5: Solve for x
    x = 23,729,927,768.21/181,807.09
  6. Step 6: Final answer
    x = 130,522.57

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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.