Home / 144,751.18-199,756.47-81,089.42

Finding the Fourth Proportional to 144,751.18, 199,756.47 and 81,089.42

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Solution

The fourth proportional to 144,751.18, 199,756.47 and 81,089.42 is: 111,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,751.18 : 199,756.47 = 81,089.42 : x
  2. Step 2: Convert to fraction form
    144,751.18/199,756.47 = 81,089.42/x
  3. Step 3: Cross multiply
    144,751.18x = 199,756.47 × 81,089.42
  4. Step 4: Simplify right side
    144,751.18x = 16,198,136,293.55
  5. Step 5: Solve for x
    x = 16,198,136,293.55/144,751.18
  6. Step 6: Final answer
    x = 111,903.31

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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.