Home / 142,897.41-197,200.44-78,372.27

Finding the Fourth Proportional to 142,897.41, 197,200.44 and 78,372.27

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Solution

The fourth proportional to 142,897.41, 197,200.44 and 78,372.27 is: 108,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,897.41 : 197,200.44 = 78,372.27 : x
  2. Step 2: Convert to fraction form
    142,897.41/197,200.44 = 78,372.27/x
  3. Step 3: Cross multiply
    142,897.41x = 197,200.44 × 78,372.27
  4. Step 4: Simplify right side
    142,897.41x = 15,455,046,127.80
  5. Step 5: Solve for x
    x = 15,455,046,127.80/142,897.41
  6. Step 6: Final answer
    x = 108,154.84

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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.