Home / 103,556.04-142,769.70-67,684.38

Finding the Fourth Proportional to 103,556.04, 142,769.70 and 67,684.38

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Solution

The fourth proportional to 103,556.04, 142,769.70 and 67,684.38 is: 93,314.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,556.04 : 142,769.70 = 67,684.38 : x
  2. Step 2: Convert to fraction form
    103,556.04/142,769.70 = 67,684.38/x
  3. Step 3: Cross multiply
    103,556.04x = 142,769.70 × 67,684.38
  4. Step 4: Simplify right side
    103,556.04x = 9,663,278,627.29
  5. Step 5: Solve for x
    x = 9,663,278,627.29/103,556.04
  6. Step 6: Final answer
    x = 93,314.49

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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.