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Finding the Fourth Proportional to 103,527.70, 155,291.55 and 100,611.70

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Solution

The fourth proportional to 103,527.70, 155,291.55 and 100,611.70 is: 150,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,527.70 : 155,291.55 = 100,611.70 : x
  2. Step 2: Convert to fraction form
    103,527.70/155,291.55 = 100,611.70/x
  3. Step 3: Cross multiply
    103,527.70x = 155,291.55 × 100,611.70
  4. Step 4: Simplify right side
    103,527.70x = 15,624,146,841.14
  5. Step 5: Solve for x
    x = 15,624,146,841.14/103,527.70
  6. Step 6: Final answer
    x = 150,917.55

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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.