Home / 118,089.75-162,967.79-70,336.61

Finding the Fourth Proportional to 118,089.75, 162,967.79 and 70,336.61

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Solution

The fourth proportional to 118,089.75, 162,967.79 and 70,336.61 is: 97,066.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,089.75 : 162,967.79 = 70,336.61 : x
  2. Step 2: Convert to fraction form
    118,089.75/162,967.79 = 70,336.61/x
  3. Step 3: Cross multiply
    118,089.75x = 162,967.79 × 70,336.61
  4. Step 4: Simplify right side
    118,089.75x = 11,462,600,721.27
  5. Step 5: Solve for x
    x = 11,462,600,721.27/118,089.75
  6. Step 6: Final answer
    x = 97,066.86

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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.