Home / 112,844.76-155,724.81-61,860.36

Finding the Fourth Proportional to 112,844.76, 155,724.81 and 61,860.36

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Solution

The fourth proportional to 112,844.76, 155,724.81 and 61,860.36 is: 85,366.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,844.76 : 155,724.81 = 61,860.36 : x
  2. Step 2: Convert to fraction form
    112,844.76/155,724.81 = 61,860.36/x
  3. Step 3: Cross multiply
    112,844.76x = 155,724.81 × 61,860.36
  4. Step 4: Simplify right side
    112,844.76x = 9,633,192,807.53
  5. Step 5: Solve for x
    x = 9,633,192,807.53/112,844.76
  6. Step 6: Final answer
    x = 85,366.77

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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.