Home / 148,756.87-205,281.03-80,774.02

Finding the Fourth Proportional to 148,756.87, 205,281.03 and 80,774.02

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Solution

The fourth proportional to 148,756.87, 205,281.03 and 80,774.02 is: 111,466.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,756.87 : 205,281.03 = 80,774.02 : x
  2. Step 2: Convert to fraction form
    148,756.87/205,281.03 = 80,774.02/x
  3. Step 3: Cross multiply
    148,756.87x = 205,281.03 × 80,774.02
  4. Step 4: Simplify right side
    148,756.87x = 16,581,374,022.84
  5. Step 5: Solve for x
    x = 16,581,374,022.84/148,756.87
  6. Step 6: Final answer
    x = 111,466.27

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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.