Home / 142,884.23-197,140.34-112,575.47

Finding the Fourth Proportional to 142,884.23, 197,140.34 and 112,575.47

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Solution

The fourth proportional to 142,884.23, 197,140.34 and 112,575.47 is: 155,322.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,884.23 : 197,140.34 = 112,575.47 : x
  2. Step 2: Convert to fraction form
    142,884.23/197,140.34 = 112,575.47/x
  3. Step 3: Cross multiply
    142,884.23x = 197,140.34 × 112,575.47
  4. Step 4: Simplify right side
    142,884.23x = 22,193,165,868.58
  5. Step 5: Solve for x
    x = 22,193,165,868.58/142,884.23
  6. Step 6: Final answer
    x = 155,322.71

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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.