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Finding the Fourth Proportional to 103,465.19, 155,209.93 and 36,914.78

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Solution

The fourth proportional to 103,465.19, 155,209.93 and 36,914.78 is: 55,376.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,465.19 : 155,209.93 = 36,914.78 : x
  2. Step 2: Convert to fraction form
    103,465.19/155,209.93 = 36,914.78/x
  3. Step 3: Cross multiply
    103,465.19x = 155,209.93 × 36,914.78
  4. Step 4: Simplify right side
    103,465.19x = 5,729,540,419.77
  5. Step 5: Solve for x
    x = 5,729,540,419.77/103,465.19
  6. Step 6: Final answer
    x = 55,376.50

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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.