Home / 111,948.29-154,325.43-85,044.09

Finding the Fourth Proportional to 111,948.29, 154,325.43 and 85,044.09

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Solution

The fourth proportional to 111,948.29, 154,325.43 and 85,044.09 is: 117,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,948.29 : 154,325.43 = 85,044.09 : x
  2. Step 2: Convert to fraction form
    111,948.29/154,325.43 = 85,044.09/x
  3. Step 3: Cross multiply
    111,948.29x = 154,325.43 × 85,044.09
  4. Step 4: Simplify right side
    111,948.29x = 13,124,465,435.40
  5. Step 5: Solve for x
    x = 13,124,465,435.40/111,948.29
  6. Step 6: Final answer
    x = 117,236.86

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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.