Home / 148,757.04-205,285.05-80,774.01

Finding the Fourth Proportional to 148,757.04, 205,285.05 and 80,774.01

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Solution

The fourth proportional to 148,757.04, 205,285.05 and 80,774.01 is: 111,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,757.04 : 205,285.05 = 80,774.01 : x
  2. Step 2: Convert to fraction form
    148,757.04/205,285.05 = 80,774.01/x
  3. Step 3: Cross multiply
    148,757.04x = 205,285.05 × 80,774.01
  4. Step 4: Simplify right side
    148,757.04x = 16,581,696,681.55
  5. Step 5: Solve for x
    x = 16,581,696,681.55/148,757.04
  6. Step 6: Final answer
    x = 111,468.32

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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.