Home / 69,372.05-103,448.95-68,740.55

Finding the Fourth Proportional to 69,372.05, 103,448.95 and 68,740.55

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Solution

The fourth proportional to 69,372.05, 103,448.95 and 68,740.55 is: 102,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,372.05 : 103,448.95 = 68,740.55 : x
  2. Step 2: Convert to fraction form
    69,372.05/103,448.95 = 68,740.55/x
  3. Step 3: Cross multiply
    69,372.05x = 103,448.95 × 68,740.55
  4. Step 4: Simplify right side
    69,372.05x = 7,111,137,418.76
  5. Step 5: Solve for x
    x = 7,111,137,418.76/69,372.05
  6. Step 6: Final answer
    x = 102,507.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.