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Finding the Fourth Proportional to 147,889.50, 204,072.87 and 90,545.01

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Solution

The fourth proportional to 147,889.50, 204,072.87 and 90,545.01 is: 124,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,889.50 : 204,072.87 = 90,545.01 : x
  2. Step 2: Convert to fraction form
    147,889.50/204,072.87 = 90,545.01/x
  3. Step 3: Cross multiply
    147,889.50x = 204,072.87 × 90,545.01
  4. Step 4: Simplify right side
    147,889.50x = 18,477,780,054.88
  5. Step 5: Solve for x
    x = 18,477,780,054.88/147,889.50
  6. Step 6: Final answer
    x = 124,943.15

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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.