Home / 197,373.87-272,406.60-129,587.45

Finding the Fourth Proportional to 197,373.87, 272,406.60 and 129,587.45

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Solution

The fourth proportional to 197,373.87, 272,406.60 and 129,587.45 is: 178,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,373.87 : 272,406.60 = 129,587.45 : x
  2. Step 2: Convert to fraction form
    197,373.87/272,406.60 = 129,587.45/x
  3. Step 3: Cross multiply
    197,373.87x = 272,406.60 × 129,587.45
  4. Step 4: Simplify right side
    197,373.87x = 35,300,475,295.14
  5. Step 5: Solve for x
    x = 35,300,475,295.14/197,373.87
  6. Step 6: Final answer
    x = 178,850.80

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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.