Home / 121,917.05-168,258.17-70,235.93

Finding the Fourth Proportional to 121,917.05, 168,258.17 and 70,235.93

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Solution

The fourth proportional to 121,917.05, 168,258.17 and 70,235.93 is: 96,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,917.05 : 168,258.17 = 70,235.93 : x
  2. Step 2: Convert to fraction form
    121,917.05/168,258.17 = 70,235.93/x
  3. Step 3: Cross multiply
    121,917.05x = 168,258.17 × 70,235.93
  4. Step 4: Simplify right side
    121,917.05x = 11,817,768,384.35
  5. Step 5: Solve for x
    x = 11,817,768,384.35/121,917.05
  6. Step 6: Final answer
    x = 96,932.86

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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.