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Finding the Fourth Proportional to 101,394.80, 152,078.40 and 26,520.80

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Solution

The fourth proportional to 101,394.80, 152,078.40 and 26,520.80 is: 39,777.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,394.80 : 152,078.40 = 26,520.80 : x
  2. Step 2: Convert to fraction form
    101,394.80/152,078.40 = 26,520.80/x
  3. Step 3: Cross multiply
    101,394.80x = 152,078.40 × 26,520.80
  4. Step 4: Simplify right side
    101,394.80x = 4,033,240,830.72
  5. Step 5: Solve for x
    x = 4,033,240,830.72/101,394.80
  6. Step 6: Final answer
    x = 39,777.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.