Home / 125,835.73-173,660.78-72,124.22

Finding the Fourth Proportional to 125,835.73, 173,660.78 and 72,124.22

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Solution

The fourth proportional to 125,835.73, 173,660.78 and 72,124.22 is: 99,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,835.73 : 173,660.78 = 72,124.22 : x
  2. Step 2: Convert to fraction form
    125,835.73/173,660.78 = 72,124.22/x
  3. Step 3: Cross multiply
    125,835.73x = 173,660.78 × 72,124.22
  4. Step 4: Simplify right side
    125,835.73x = 12,525,148,302.09
  5. Step 5: Solve for x
    x = 12,525,148,302.09/125,835.73
  6. Step 6: Final answer
    x = 99,535.71

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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.