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Finding the Fourth Proportional to 172,975.76, 238,730.25 and 101,384.31

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Solution

The fourth proportional to 172,975.76, 238,730.25 and 101,384.31 is: 139,924.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,975.76 : 238,730.25 = 101,384.31 : x
  2. Step 2: Convert to fraction form
    172,975.76/238,730.25 = 101,384.31/x
  3. Step 3: Cross multiply
    172,975.76x = 238,730.25 × 101,384.31
  4. Step 4: Simplify right side
    172,975.76x = 24,203,501,672.38
  5. Step 5: Solve for x
    x = 24,203,501,672.38/172,975.76
  6. Step 6: Final answer
    x = 139,924.24

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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.