Home / 118,721.18-178,053.81-34,459.11

Finding the Fourth Proportional to 118,721.18, 178,053.81 and 34,459.11

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Solution

The fourth proportional to 118,721.18, 178,053.81 and 34,459.11 is: 51,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,721.18 : 178,053.81 = 34,459.11 : x
  2. Step 2: Convert to fraction form
    118,721.18/178,053.81 = 34,459.11/x
  3. Step 3: Cross multiply
    118,721.18x = 178,053.81 × 34,459.11
  4. Step 4: Simplify right side
    118,721.18x = 6,135,575,824.71
  5. Step 5: Solve for x
    x = 6,135,575,824.71/118,721.18
  6. Step 6: Final answer
    x = 51,680.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.