Home / 112,774.71-155,621.81-61,787.37

Finding the Fourth Proportional to 112,774.71, 155,621.81 and 61,787.37

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Solution

The fourth proportional to 112,774.71, 155,621.81 and 61,787.37 is: 85,262.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,774.71 : 155,621.81 = 61,787.37 : x
  2. Step 2: Convert to fraction form
    112,774.71/155,621.81 = 61,787.37/x
  3. Step 3: Cross multiply
    112,774.71x = 155,621.81 × 61,787.37
  4. Step 4: Simplify right side
    112,774.71x = 9,615,462,354.54
  5. Step 5: Solve for x
    x = 9,615,462,354.54/112,774.71
  6. Step 6: Final answer
    x = 85,262.58

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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.