Home / 202,061.27-278,697.98-137,415.60

Finding the Fourth Proportional to 202,061.27, 278,697.98 and 137,415.60

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Solution

The fourth proportional to 202,061.27, 278,697.98 and 137,415.60 is: 189,533.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,061.27 : 278,697.98 = 137,415.60 : x
  2. Step 2: Convert to fraction form
    202,061.27/278,697.98 = 137,415.60/x
  3. Step 3: Cross multiply
    202,061.27x = 278,697.98 × 137,415.60
  4. Step 4: Simplify right side
    202,061.27x = 38,297,450,140.49
  5. Step 5: Solve for x
    x = 38,297,450,140.49/202,061.27
  6. Step 6: Final answer
    x = 189,533.85

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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.