Home / 197,820.77-272,992.70-107,177.36

Finding the Fourth Proportional to 197,820.77, 272,992.70 and 107,177.36

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Solution

The fourth proportional to 197,820.77, 272,992.70 and 107,177.36 is: 147,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,820.77 : 272,992.70 = 107,177.36 : x
  2. Step 2: Convert to fraction form
    197,820.77/272,992.70 = 107,177.36/x
  3. Step 3: Cross multiply
    197,820.77x = 272,992.70 × 107,177.36
  4. Step 4: Simplify right side
    197,820.77x = 29,258,636,349.39
  5. Step 5: Solve for x
    x = 29,258,636,349.39/197,820.77
  6. Step 6: Final answer
    x = 147,904.77

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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.