Home / 125,913.78-173,708.96-74,916.32

Finding the Fourth Proportional to 125,913.78, 173,708.96 and 74,916.32

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Solution

The fourth proportional to 125,913.78, 173,708.96 and 74,916.32 is: 103,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,913.78 : 173,708.96 = 74,916.32 : x
  2. Step 2: Convert to fraction form
    125,913.78/173,708.96 = 74,916.32/x
  3. Step 3: Cross multiply
    125,913.78x = 173,708.96 × 74,916.32
  4. Step 4: Simplify right side
    125,913.78x = 13,013,634,791.10
  5. Step 5: Solve for x
    x = 13,013,634,791.10/125,913.78
  6. Step 6: Final answer
    x = 103,353.54

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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.