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Finding the Fourth Proportional to 101,707.70, 152,561.55 and 39,378.20

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Solution

The fourth proportional to 101,707.70, 152,561.55 and 39,378.20 is: 59,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,707.70 : 152,561.55 = 39,378.20 : x
  2. Step 2: Convert to fraction form
    101,707.70/152,561.55 = 39,378.20/x
  3. Step 3: Cross multiply
    101,707.70x = 152,561.55 × 39,378.20
  4. Step 4: Simplify right side
    101,707.70x = 6,007,598,465.40
  5. Step 5: Solve for x
    x = 6,007,598,465.40/101,707.70
  6. Step 6: Final answer
    x = 59,067.30

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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.