Home / 142,694.50-196,919.85-86,094.94

Finding the Fourth Proportional to 142,694.50, 196,919.85 and 86,094.94

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Solution

The fourth proportional to 142,694.50, 196,919.85 and 86,094.94 is: 118,811.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,694.50 : 196,919.85 = 86,094.94 : x
  2. Step 2: Convert to fraction form
    142,694.50/196,919.85 = 86,094.94/x
  3. Step 3: Cross multiply
    142,694.50x = 196,919.85 × 86,094.94
  4. Step 4: Simplify right side
    142,694.50x = 16,953,802,501.12
  5. Step 5: Solve for x
    x = 16,953,802,501.12/142,694.50
  6. Step 6: Final answer
    x = 118,811.89

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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.