Home / 142,926.37-197,237.03-78,394.27

Finding the Fourth Proportional to 142,926.37, 197,237.03 and 78,394.27

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Solution

The fourth proportional to 142,926.37, 197,237.03 and 78,394.27 is: 108,183.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,926.37 : 197,237.03 = 78,394.27 : x
  2. Step 2: Convert to fraction form
    142,926.37/197,237.03 = 78,394.27/x
  3. Step 3: Cross multiply
    142,926.37x = 197,237.03 × 78,394.27
  4. Step 4: Simplify right side
    142,926.37x = 15,462,252,191.21
  5. Step 5: Solve for x
    x = 15,462,252,191.21/142,926.37
  6. Step 6: Final answer
    x = 108,183.34

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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.