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Finding the Fourth Proportional to 149,985.99, 225,089.51 and 71,099.91

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Solution

The fourth proportional to 149,985.99, 225,089.51 and 71,099.91 is: 106,702.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,985.99 : 225,089.51 = 71,099.91 : x
  2. Step 2: Convert to fraction form
    149,985.99/225,089.51 = 71,099.91/x
  3. Step 3: Cross multiply
    149,985.99x = 225,089.51 × 71,099.91
  4. Step 4: Simplify right side
    149,985.99x = 16,003,843,547.44
  5. Step 5: Solve for x
    x = 16,003,843,547.44/149,985.99
  6. Step 6: Final answer
    x = 106,702.26

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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.