Home / 112,822.52-155,697.09-61,831.88

Finding the Fourth Proportional to 112,822.52, 155,697.09 and 61,831.88

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Solution

The fourth proportional to 112,822.52, 155,697.09 and 61,831.88 is: 85,329.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,822.52 : 155,697.09 = 61,831.88 : x
  2. Step 2: Convert to fraction form
    112,822.52/155,697.09 = 61,831.88/x
  3. Step 3: Cross multiply
    112,822.52x = 155,697.09 × 61,831.88
  4. Step 4: Simplify right side
    112,822.52x = 9,627,043,006.74
  5. Step 5: Solve for x
    x = 9,627,043,006.74/112,822.52
  6. Step 6: Final answer
    x = 85,329.09

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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.