Home / 125,409.09-173,067.53-71,699.15

Finding the Fourth Proportional to 125,409.09, 173,067.53 and 71,699.15

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Solution

The fourth proportional to 125,409.09, 173,067.53 and 71,699.15 is: 98,946.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,409.09 : 173,067.53 = 71,699.15 : x
  2. Step 2: Convert to fraction form
    125,409.09/173,067.53 = 71,699.15/x
  3. Step 3: Cross multiply
    125,409.09x = 173,067.53 × 71,699.15
  4. Step 4: Simplify right side
    125,409.09x = 12,408,793,569.77
  5. Step 5: Solve for x
    x = 12,408,793,569.77/125,409.09
  6. Step 6: Final answer
    x = 98,946.52

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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.