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Finding the Fourth Proportional to 152,604.63, 228,611.75 and 85,841.91

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Solution

The fourth proportional to 152,604.63, 228,611.75 and 85,841.91 is: 128,596.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,604.63 : 228,611.75 = 85,841.91 : x
  2. Step 2: Convert to fraction form
    152,604.63/228,611.75 = 85,841.91/x
  3. Step 3: Cross multiply
    152,604.63x = 228,611.75 × 85,841.91
  4. Step 4: Simplify right side
    152,604.63x = 19,624,468,839.23
  5. Step 5: Solve for x
    x = 19,624,468,839.23/152,604.63
  6. Step 6: Final answer
    x = 128,596.81

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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.