Home / 112,200.72-154,834.92-61,898.64

Finding the Fourth Proportional to 112,200.72, 154,834.92 and 61,898.64

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Solution

The fourth proportional to 112,200.72, 154,834.92 and 61,898.64 is: 85,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,200.72 : 154,834.92 = 61,898.64 : x
  2. Step 2: Convert to fraction form
    112,200.72/154,834.92 = 61,898.64/x
  3. Step 3: Cross multiply
    112,200.72x = 154,834.92 × 61,898.64
  4. Step 4: Simplify right side
    112,200.72x = 9,584,070,972.51
  5. Step 5: Solve for x
    x = 9,584,070,972.51/112,200.72
  6. Step 6: Final answer
    x = 85,418.98

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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.