Home / 112,775.22-155,628.05-61,787.52

Finding the Fourth Proportional to 112,775.22, 155,628.05 and 61,787.52

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Solution

The fourth proportional to 112,775.22, 155,628.05 and 61,787.52 is: 85,265.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,775.22 : 155,628.05 = 61,787.52 : x
  2. Step 2: Convert to fraction form
    112,775.22/155,628.05 = 61,787.52/x
  3. Step 3: Cross multiply
    112,775.22x = 155,628.05 × 61,787.52
  4. Step 4: Simplify right side
    112,775.22x = 9,615,870,943.00
  5. Step 5: Solve for x
    x = 9,615,870,943.00/112,775.22
  6. Step 6: Final answer
    x = 85,265.81

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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.