Home / 125,886.02-173,704.32-71,429.72

Finding the Fourth Proportional to 125,886.02, 173,704.32 and 71,429.72

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Solution

The fourth proportional to 125,886.02, 173,704.32 and 71,429.72 is: 98,562.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,886.02 : 173,704.32 = 71,429.72 : x
  2. Step 2: Convert to fraction form
    125,886.02/173,704.32 = 71,429.72/x
  3. Step 3: Cross multiply
    125,886.02x = 173,704.32 × 71,429.72
  4. Step 4: Simplify right side
    125,886.02x = 12,407,650,940.39
  5. Step 5: Solve for x
    x = 12,407,650,940.39/125,886.02
  6. Step 6: Final answer
    x = 98,562.58

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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.