Home / 117,983.75-162,812.57-64,269.18

Finding the Fourth Proportional to 117,983.75, 162,812.57 and 64,269.18

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Solution

The fourth proportional to 117,983.75, 162,812.57 and 64,269.18 is: 88,688.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,983.75 : 162,812.57 = 64,269.18 : x
  2. Step 2: Convert to fraction form
    117,983.75/162,812.57 = 64,269.18/x
  3. Step 3: Cross multiply
    117,983.75x = 162,812.57 × 64,269.18
  4. Step 4: Simplify right side
    117,983.75x = 10,463,830,046.25
  5. Step 5: Solve for x
    x = 10,463,830,046.25/117,983.75
  6. Step 6: Final answer
    x = 88,688.74

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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.