Home / 141,145.36-211,718.33-99,213.07

Finding the Fourth Proportional to 141,145.36, 211,718.33 and 99,213.07

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Solution

The fourth proportional to 141,145.36, 211,718.33 and 99,213.07 is: 148,819.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,145.36 : 211,718.33 = 99,213.07 : x
  2. Step 2: Convert to fraction form
    141,145.36/211,718.33 = 99,213.07/x
  3. Step 3: Cross multiply
    141,145.36x = 211,718.33 × 99,213.07
  4. Step 4: Simplify right side
    141,145.36x = 21,005,225,213.31
  5. Step 5: Solve for x
    x = 21,005,225,213.31/141,145.36
  6. Step 6: Final answer
    x = 148,819.81

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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.