Home / 147,769.44-203,988.96-94,128

Finding the Fourth Proportional to 147,769.44, 203,988.96 and 94,128

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Solution

The fourth proportional to 147,769.44, 203,988.96 and 94,128 is: 129,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,769.44 : 203,988.96 = 94,128 : x
  2. Step 2: Convert to fraction form
    147,769.44/203,988.96 = 94,128/x
  3. Step 3: Cross multiply
    147,769.44x = 203,988.96 × 94,128
  4. Step 4: Simplify right side
    147,769.44x = 19,201,072,826.88
  5. Step 5: Solve for x
    x = 19,201,072,826.88/147,769.44
  6. Step 6: Final answer
    x = 129,939.40

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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.