Home / 141,918.12-212,893.65-47,156.76

Finding the Fourth Proportional to 141,918.12, 212,893.65 and 47,156.76

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Solution

The fourth proportional to 141,918.12, 212,893.65 and 47,156.76 is: 70,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,918.12 : 212,893.65 = 47,156.76 : x
  2. Step 2: Convert to fraction form
    141,918.12/212,893.65 = 47,156.76/x
  3. Step 3: Cross multiply
    141,918.12x = 212,893.65 × 47,156.76
  4. Step 4: Simplify right side
    141,918.12x = 10,039,374,758.57
  5. Step 5: Solve for x
    x = 10,039,374,758.57/141,918.12
  6. Step 6: Final answer
    x = 70,740.61

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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.