Home / 148,751.40-205,280.50-80,771.24

Finding the Fourth Proportional to 148,751.40, 205,280.50 and 80,771.24

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Solution

The fourth proportional to 148,751.40, 205,280.50 and 80,771.24 is: 111,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,751.40 : 205,280.50 = 80,771.24 : x
  2. Step 2: Convert to fraction form
    148,751.40/205,280.50 = 80,771.24/x
  3. Step 3: Cross multiply
    148,751.40x = 205,280.50 × 80,771.24
  4. Step 4: Simplify right side
    148,751.40x = 16,580,760,532.82
  5. Step 5: Solve for x
    x = 16,580,760,532.82/148,751.40
  6. Step 6: Final answer
    x = 111,466.25

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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.