Home / 112,530.66-155,286.02-61,533.28

Finding the Fourth Proportional to 112,530.66, 155,286.02 and 61,533.28

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Solution

The fourth proportional to 112,530.66, 155,286.02 and 61,533.28 is: 84,912.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,530.66 : 155,286.02 = 61,533.28 : x
  2. Step 2: Convert to fraction form
    112,530.66/155,286.02 = 61,533.28/x
  3. Step 3: Cross multiply
    112,530.66x = 155,286.02 × 61,533.28
  4. Step 4: Simplify right side
    112,530.66x = 9,555,258,148.75
  5. Step 5: Solve for x
    x = 9,555,258,148.75/112,530.66
  6. Step 6: Final answer
    x = 84,912.49

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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.