Home / 112,631.25-155,431.13-62,333.49

Finding the Fourth Proportional to 112,631.25, 155,431.13 and 62,333.49

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Solution

The fourth proportional to 112,631.25, 155,431.13 and 62,333.49 is: 86,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,631.25 : 155,431.13 = 62,333.49 : x
  2. Step 2: Convert to fraction form
    112,631.25/155,431.13 = 62,333.49/x
  3. Step 3: Cross multiply
    112,631.25x = 155,431.13 × 62,333.49
  4. Step 4: Simplify right side
    112,631.25x = 9,688,564,475.88
  5. Step 5: Solve for x
    x = 9,688,564,475.88/112,631.25
  6. Step 6: Final answer
    x = 86,020.22

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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.