Home / 125,770.84-173,588.40-72,091.80

Finding the Fourth Proportional to 125,770.84, 173,588.40 and 72,091.80

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Solution

The fourth proportional to 125,770.84, 173,588.40 and 72,091.80 is: 99,500.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,770.84 : 173,588.40 = 72,091.80 : x
  2. Step 2: Convert to fraction form
    125,770.84/173,588.40 = 72,091.80/x
  3. Step 3: Cross multiply
    125,770.84x = 173,588.40 × 72,091.80
  4. Step 4: Simplify right side
    125,770.84x = 12,514,300,215.12
  5. Step 5: Solve for x
    x = 12,514,300,215.12/125,770.84
  6. Step 6: Final answer
    x = 99,500.81

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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.