Home / 112,631.57-155,431.56-62,333.81

Finding the Fourth Proportional to 112,631.57, 155,431.56 and 62,333.81

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Solution

The fourth proportional to 112,631.57, 155,431.56 and 62,333.81 is: 86,020.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,631.57 : 155,431.56 = 62,333.81 : x
  2. Step 2: Convert to fraction form
    112,631.57/155,431.56 = 62,333.81/x
  3. Step 3: Cross multiply
    112,631.57x = 155,431.56 × 62,333.81
  4. Step 4: Simplify right side
    112,631.57x = 9,688,640,240.22
  5. Step 5: Solve for x
    x = 9,688,640,240.22/112,631.57
  6. Step 6: Final answer
    x = 86,020.65

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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.