Home / 112,284.08-154,951.08-61,982

Finding the Fourth Proportional to 112,284.08, 154,951.08 and 61,982

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Solution

The fourth proportional to 112,284.08, 154,951.08 and 61,982 is: 85,534.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,284.08 : 154,951.08 = 61,982 : x
  2. Step 2: Convert to fraction form
    112,284.08/154,951.08 = 61,982/x
  3. Step 3: Cross multiply
    112,284.08x = 154,951.08 × 61,982
  4. Step 4: Simplify right side
    112,284.08x = 9,604,177,840.56
  5. Step 5: Solve for x
    x = 9,604,177,840.56/112,284.08
  6. Step 6: Final answer
    x = 85,534.64

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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.