Home / 112,312.22-154,989.66-61,324.78

Finding the Fourth Proportional to 112,312.22, 154,989.66 and 61,324.78

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Solution

The fourth proportional to 112,312.22, 154,989.66 and 61,324.78 is: 84,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,312.22 : 154,989.66 = 61,324.78 : x
  2. Step 2: Convert to fraction form
    112,312.22/154,989.66 = 61,324.78/x
  3. Step 3: Cross multiply
    112,312.22x = 154,989.66 × 61,324.78
  4. Step 4: Simplify right side
    112,312.22x = 9,504,706,801.77
  5. Step 5: Solve for x
    x = 9,504,706,801.77/112,312.22
  6. Step 6: Final answer
    x = 84,627.54

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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.