Home / 103,636.68-143,023.23-61,195.38

Finding the Fourth Proportional to 103,636.68, 143,023.23 and 61,195.38

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Solution

The fourth proportional to 103,636.68, 143,023.23 and 61,195.38 is: 84,452.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.68 : 143,023.23 = 61,195.38 : x
  2. Step 2: Convert to fraction form
    103,636.68/143,023.23 = 61,195.38/x
  3. Step 3: Cross multiply
    103,636.68x = 143,023.23 × 61,195.38
  4. Step 4: Simplify right side
    103,636.68x = 8,752,360,908.68
  5. Step 5: Solve for x
    x = 8,752,360,908.68/103,636.68
  6. Step 6: Final answer
    x = 84,452.35

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1.5x scale

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.