Home / 197,631.64-272,731.60-106,987.54

Finding the Fourth Proportional to 197,631.64, 272,731.60 and 106,987.54

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Solution

The fourth proportional to 197,631.64, 272,731.60 and 106,987.54 is: 147,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,631.64 : 272,731.60 = 106,987.54 : x
  2. Step 2: Convert to fraction form
    197,631.64/272,731.60 = 106,987.54/x
  3. Step 3: Cross multiply
    197,631.64x = 272,731.60 × 106,987.54
  4. Step 4: Simplify right side
    197,631.64x = 29,178,882,105.40
  5. Step 5: Solve for x
    x = 29,178,882,105.40/197,631.64
  6. Step 6: Final answer
    x = 147,642.77

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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.