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Finding the Fourth Proportional to 172,110.16, 258,266.37 and 72,262.67

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Solution

The fourth proportional to 172,110.16, 258,266.37 and 72,262.67 is: 108,436.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,110.16 : 258,266.37 = 72,262.67 : x
  2. Step 2: Convert to fraction form
    172,110.16/258,266.37 = 72,262.67/x
  3. Step 3: Cross multiply
    172,110.16x = 258,266.37 × 72,262.67
  4. Step 4: Simplify right side
    172,110.16x = 18,663,017,106.09
  5. Step 5: Solve for x
    x = 18,663,017,106.09/172,110.16
  6. Step 6: Final answer
    x = 108,436.47

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1.5x scale

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.