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Finding the Fourth Proportional to 172,658.72, 238,214.22 and 97,192.64

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Solution

The fourth proportional to 172,658.72, 238,214.22 and 97,192.64 is: 134,094.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,658.72 : 238,214.22 = 97,192.64 : x
  2. Step 2: Convert to fraction form
    172,658.72/238,214.22 = 97,192.64/x
  3. Step 3: Cross multiply
    172,658.72x = 238,214.22 × 97,192.64
  4. Step 4: Simplify right side
    172,658.72x = 23,152,669,158.40
  5. Step 5: Solve for x
    x = 23,152,669,158.40/172,658.72
  6. Step 6: Final answer
    x = 134,094.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.