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Finding the Fourth Proportional to 172,562, 238,145.28 and 97,115.36

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Solution

The fourth proportional to 172,562, 238,145.28 and 97,115.36 is: 134,024.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,562 : 238,145.28 = 97,115.36 : x
  2. Step 2: Convert to fraction form
    172,562/238,145.28 = 97,115.36/x
  3. Step 3: Cross multiply
    172,562x = 238,145.28 × 97,115.36
  4. Step 4: Simplify right side
    172,562x = 23,127,564,599.50
  5. Step 5: Solve for x
    x = 23,127,564,599.50/172,562
  6. Step 6: Final answer
    x = 134,024.67

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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.