Home / 142,615.98-196,748.25-85,995.90

Finding the Fourth Proportional to 142,615.98, 196,748.25 and 85,995.90

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Solution

The fourth proportional to 142,615.98, 196,748.25 and 85,995.90 is: 118,637.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,615.98 : 196,748.25 = 85,995.90 : x
  2. Step 2: Convert to fraction form
    142,615.98/196,748.25 = 85,995.90/x
  3. Step 3: Cross multiply
    142,615.98x = 196,748.25 × 85,995.90
  4. Step 4: Simplify right side
    142,615.98x = 16,919,542,832.18
  5. Step 5: Solve for x
    x = 16,919,542,832.18/142,615.98
  6. Step 6: Final answer
    x = 118,637.08

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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.