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Finding the Fourth Proportional to 103,706.19, 155,524.70 and 40,509.93

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Solution

The fourth proportional to 103,706.19, 155,524.70 and 40,509.93 is: 60,751.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,706.19 : 155,524.70 = 40,509.93 : x
  2. Step 2: Convert to fraction form
    103,706.19/155,524.70 = 40,509.93/x
  3. Step 3: Cross multiply
    103,706.19x = 155,524.70 × 40,509.93
  4. Step 4: Simplify right side
    103,706.19x = 6,300,294,507.72
  5. Step 5: Solve for x
    x = 6,300,294,507.72/103,706.19
  6. Step 6: Final answer
    x = 60,751.38

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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.