Home / 141,019.29-211,460.90-81,869.85

Finding the Fourth Proportional to 141,019.29, 211,460.90 and 81,869.85

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Solution

The fourth proportional to 141,019.29, 211,460.90 and 81,869.85 is: 122,765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,019.29 : 211,460.90 = 81,869.85 : x
  2. Step 2: Convert to fraction form
    141,019.29/211,460.90 = 81,869.85/x
  3. Step 3: Cross multiply
    141,019.29x = 211,460.90 × 81,869.85
  4. Step 4: Simplify right side
    141,019.29x = 17,312,271,754.52
  5. Step 5: Solve for x
    x = 17,312,271,754.52/141,019.29
  6. Step 6: Final answer
    x = 122,765.27

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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.