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Finding the Fourth Proportional to 102,000.63, 153,006.41 and 31,885.41

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Solution

The fourth proportional to 102,000.63, 153,006.41 and 31,885.41 is: 47,829.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,000.63 : 153,006.41 = 31,885.41 : x
  2. Step 2: Convert to fraction form
    102,000.63/153,006.41 = 31,885.41/x
  3. Step 3: Cross multiply
    102,000.63x = 153,006.41 × 31,885.41
  4. Step 4: Simplify right side
    102,000.63x = 4,878,672,115.48
  5. Step 5: Solve for x
    x = 4,878,672,115.48/102,000.63
  6. Step 6: Final answer
    x = 47,829.82

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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.