Home / 141,849.07-195,730.63-81,421.99

Finding the Fourth Proportional to 141,849.07, 195,730.63 and 81,421.99

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Solution

The fourth proportional to 141,849.07, 195,730.63 and 81,421.99 is: 112,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,849.07 : 195,730.63 = 81,421.99 : x
  2. Step 2: Convert to fraction form
    141,849.07/195,730.63 = 81,421.99/x
  3. Step 3: Cross multiply
    141,849.07x = 195,730.63 × 81,421.99
  4. Step 4: Simplify right side
    141,849.07x = 15,936,777,398.55
  5. Step 5: Solve for x
    x = 15,936,777,398.55/141,849.07
  6. Step 6: Final answer
    x = 112,350.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.