Home / 142,616.98-196,749.63-85,996.90

Finding the Fourth Proportional to 142,616.98, 196,749.63 and 85,996.90

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Solution

The fourth proportional to 142,616.98, 196,749.63 and 85,996.90 is: 118,638.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,616.98 : 196,749.63 = 85,996.90 : x
  2. Step 2: Convert to fraction form
    142,616.98/196,749.63 = 85,996.90/x
  3. Step 3: Cross multiply
    142,616.98x = 196,749.63 × 85,996.90
  4. Step 4: Simplify right side
    142,616.98x = 16,919,858,256.15
  5. Step 5: Solve for x
    x = 16,919,858,256.15/142,616.98
  6. Step 6: Final answer
    x = 118,638.46

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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.