Home / 142,930.17-197,237.03-79,266.60

Finding the Fourth Proportional to 142,930.17, 197,237.03 and 79,266.60

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Solution

The fourth proportional to 142,930.17, 197,237.03 and 79,266.60 is: 109,384.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,930.17 : 197,237.03 = 79,266.60 : x
  2. Step 2: Convert to fraction form
    142,930.17/197,237.03 = 79,266.60/x
  3. Step 3: Cross multiply
    142,930.17x = 197,237.03 × 79,266.60
  4. Step 4: Simplify right side
    142,930.17x = 15,634,308,365.87
  5. Step 5: Solve for x
    x = 15,634,308,365.87/142,930.17
  6. Step 6: Final answer
    x = 109,384.24

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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.