Home / 141,742.15-212,620.98-57,489.80

Finding the Fourth Proportional to 141,742.15, 212,620.98 and 57,489.80

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Solution

The fourth proportional to 141,742.15, 212,620.98 and 57,489.80 is: 86,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,742.15 : 212,620.98 = 57,489.80 : x
  2. Step 2: Convert to fraction form
    141,742.15/212,620.98 = 57,489.80/x
  3. Step 3: Cross multiply
    141,742.15x = 212,620.98 × 57,489.80
  4. Step 4: Simplify right side
    141,742.15x = 12,223,537,616.00
  5. Step 5: Solve for x
    x = 12,223,537,616.00/141,742.15
  6. Step 6: Final answer
    x = 86,237.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.