Home / 112,239.52-154,889.76-61,938.64

Finding the Fourth Proportional to 112,239.52, 154,889.76 and 61,938.64

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Solution

The fourth proportional to 112,239.52, 154,889.76 and 61,938.64 is: 85,474.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,239.52 : 154,889.76 = 61,938.64 : x
  2. Step 2: Convert to fraction form
    112,239.52/154,889.76 = 61,938.64/x
  3. Step 3: Cross multiply
    112,239.52x = 154,889.76 × 61,938.64
  4. Step 4: Simplify right side
    112,239.52x = 9,593,661,084.33
  5. Step 5: Solve for x
    x = 9,593,661,084.33/112,239.52
  6. Step 6: Final answer
    x = 85,474.89

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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.