Home / 112,193.25-154,815.90-61,889.01

Finding the Fourth Proportional to 112,193.25, 154,815.90 and 61,889.01

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Solution

The fourth proportional to 112,193.25, 154,815.90 and 61,889.01 is: 85,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,193.25 : 154,815.90 = 61,889.01 : x
  2. Step 2: Convert to fraction form
    112,193.25/154,815.90 = 61,889.01/x
  3. Step 3: Cross multiply
    112,193.25x = 154,815.90 × 61,889.01
  4. Step 4: Simplify right side
    112,193.25x = 9,581,402,783.26
  5. Step 5: Solve for x
    x = 9,581,402,783.26/112,193.25
  6. Step 6: Final answer
    x = 85,400.88

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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.