Home / 112,103.52-154,702.84-61,803.60

Finding the Fourth Proportional to 112,103.52, 154,702.84 and 61,803.60

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Solution

The fourth proportional to 112,103.52, 154,702.84 and 61,803.60 is: 85,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,103.52 : 154,702.84 = 61,803.60 : x
  2. Step 2: Convert to fraction form
    112,103.52/154,702.84 = 61,803.60/x
  3. Step 3: Cross multiply
    112,103.52x = 154,702.84 × 61,803.60
  4. Step 4: Simplify right side
    112,103.52x = 9,561,192,442.22
  5. Step 5: Solve for x
    x = 9,561,192,442.22/112,103.52
  6. Step 6: Final answer
    x = 85,288.96

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1.5x scale

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.