Home / 138,953.06-191,821.35-93,091.67

Finding the Fourth Proportional to 138,953.06, 191,821.35 and 93,091.67

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Solution

The fourth proportional to 138,953.06, 191,821.35 and 93,091.67 is: 128,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,953.06 : 191,821.35 = 93,091.67 : x
  2. Step 2: Convert to fraction form
    138,953.06/191,821.35 = 93,091.67/x
  3. Step 3: Cross multiply
    138,953.06x = 191,821.35 × 93,091.67
  4. Step 4: Simplify right side
    138,953.06x = 17,856,969,347.70
  5. Step 5: Solve for x
    x = 17,856,969,347.70/138,953.06
  6. Step 6: Final answer
    x = 128,510.80

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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.