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Finding the Fourth Proportional to 102,615.70, 153,923.55 and 36,130.90

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Solution

The fourth proportional to 102,615.70, 153,923.55 and 36,130.90 is: 54,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,615.70 : 153,923.55 = 36,130.90 : x
  2. Step 2: Convert to fraction form
    102,615.70/153,923.55 = 36,130.90/x
  3. Step 3: Cross multiply
    102,615.70x = 153,923.55 × 36,130.90
  4. Step 4: Simplify right side
    102,615.70x = 5,561,396,392.70
  5. Step 5: Solve for x
    x = 5,561,396,392.70/102,615.70
  6. Step 6: Final answer
    x = 54,196.35

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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.