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Finding the Fourth Proportional to 147,889.28, 204,094.60 and 87,495.28

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Solution

The fourth proportional to 147,889.28, 204,094.60 and 87,495.28 is: 120,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,889.28 : 204,094.60 = 87,495.28 : x
  2. Step 2: Convert to fraction form
    147,889.28/204,094.60 = 87,495.28/x
  3. Step 3: Cross multiply
    147,889.28x = 204,094.60 × 87,495.28
  4. Step 4: Simplify right side
    147,889.28x = 17,857,314,173.49
  5. Step 5: Solve for x
    x = 17,857,314,173.49/147,889.28
  6. Step 6: Final answer
    x = 120,747.86

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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.