Home / 112,090.30-154,682.61-61,103.47

Finding the Fourth Proportional to 112,090.30, 154,682.61 and 61,103.47

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Solution

The fourth proportional to 112,090.30, 154,682.61 and 61,103.47 is: 84,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,090.30 : 154,682.61 = 61,103.47 : x
  2. Step 2: Convert to fraction form
    112,090.30/154,682.61 = 61,103.47/x
  3. Step 3: Cross multiply
    112,090.30x = 154,682.61 × 61,103.47
  4. Step 4: Simplify right side
    112,090.30x = 9,451,644,219.66
  5. Step 5: Solve for x
    x = 9,451,644,219.66/112,090.30
  6. Step 6: Final answer
    x = 84,321.70

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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.