Home / 111,948.13-154,325.22-85,043.93

Finding the Fourth Proportional to 111,948.13, 154,325.22 and 85,043.93

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Solution

The fourth proportional to 111,948.13, 154,325.22 and 85,043.93 is: 117,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,948.13 : 154,325.22 = 85,043.93 : x
  2. Step 2: Convert to fraction form
    111,948.13/154,325.22 = 85,043.93/x
  3. Step 3: Cross multiply
    111,948.13x = 154,325.22 × 85,043.93
  4. Step 4: Simplify right side
    111,948.13x = 13,124,422,984.45
  5. Step 5: Solve for x
    x = 13,124,422,984.45/111,948.13
  6. Step 6: Final answer
    x = 117,236.64

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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.