Home / 142,958.64-197,283.87-79,297.50

Finding the Fourth Proportional to 142,958.64, 197,283.87 and 79,297.50

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Solution

The fourth proportional to 142,958.64, 197,283.87 and 79,297.50 is: 109,431.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,958.64 : 197,283.87 = 79,297.50 : x
  2. Step 2: Convert to fraction form
    142,958.64/197,283.87 = 79,297.50/x
  3. Step 3: Cross multiply
    142,958.64x = 197,283.87 × 79,297.50
  4. Step 4: Simplify right side
    142,958.64x = 15,644,117,681.33
  5. Step 5: Solve for x
    x = 15,644,117,681.33/142,958.64
  6. Step 6: Final answer
    x = 109,431.08

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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.