Home / 112,120.68-154,719.18-61,820.04

Finding the Fourth Proportional to 112,120.68, 154,719.18 and 61,820.04

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Solution

The fourth proportional to 112,120.68, 154,719.18 and 61,820.04 is: 85,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,120.68 : 154,719.18 = 61,820.04 : x
  2. Step 2: Convert to fraction form
    112,120.68/154,719.18 = 61,820.04/x
  3. Step 3: Cross multiply
    112,120.68x = 154,719.18 × 61,820.04
  4. Step 4: Simplify right side
    112,120.68x = 9,564,745,896.37
  5. Step 5: Solve for x
    x = 9,564,745,896.37/112,120.68
  6. Step 6: Final answer
    x = 85,307.60

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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.