Home / 141,113.30-211,345.22-81,802.58

Finding the Fourth Proportional to 141,113.30, 211,345.22 and 81,802.58

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Solution

The fourth proportional to 141,113.30, 211,345.22 and 81,802.58 is: 122,515.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,113.30 : 211,345.22 = 81,802.58 : x
  2. Step 2: Convert to fraction form
    141,113.30/211,345.22 = 81,802.58/x
  3. Step 3: Cross multiply
    141,113.30x = 211,345.22 × 81,802.58
  4. Step 4: Simplify right side
    141,113.30x = 17,288,582,800.93
  5. Step 5: Solve for x
    x = 17,288,582,800.93/141,113.30
  6. Step 6: Final answer
    x = 122,515.62

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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.