Home / 142,534.74-196,666.68-85,165.44

Finding the Fourth Proportional to 142,534.74, 196,666.68 and 85,165.44

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Solution

The fourth proportional to 142,534.74, 196,666.68 and 85,165.44 is: 117,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,534.74 : 196,666.68 = 85,165.44 : x
  2. Step 2: Convert to fraction form
    142,534.74/196,666.68 = 85,165.44/x
  3. Step 3: Cross multiply
    142,534.74x = 196,666.68 × 85,165.44
  4. Step 4: Simplify right side
    142,534.74x = 16,749,204,335.54
  5. Step 5: Solve for x
    x = 16,749,204,335.54/142,534.74
  6. Step 6: Final answer
    x = 117,509.63

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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.