Home / 139,057.44-191,828.61-87,984.06

Finding the Fourth Proportional to 139,057.44, 191,828.61 and 87,984.06

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Solution

The fourth proportional to 139,057.44, 191,828.61 and 87,984.06 is: 121,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,057.44 : 191,828.61 = 87,984.06 : x
  2. Step 2: Convert to fraction form
    139,057.44/191,828.61 = 87,984.06/x
  3. Step 3: Cross multiply
    139,057.44x = 191,828.61 × 87,984.06
  4. Step 4: Simplify right side
    139,057.44x = 16,877,859,931.96
  5. Step 5: Solve for x
    x = 16,877,859,931.96/139,057.44
  6. Step 6: Final answer
    x = 121,373.30

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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.