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Finding the Fourth Proportional to 172,759.77, 258,706.71 and 109,388.75

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Solution

The fourth proportional to 172,759.77, 258,706.71 and 109,388.75 is: 163,808.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,759.77 : 258,706.71 = 109,388.75 : x
  2. Step 2: Convert to fraction form
    172,759.77/258,706.71 = 109,388.75/x
  3. Step 3: Cross multiply
    172,759.77x = 258,706.71 × 109,388.75
  4. Step 4: Simplify right side
    172,759.77x = 28,299,602,329.98
  5. Step 5: Solve for x
    x = 28,299,602,329.98/172,759.77
  6. Step 6: Final answer
    x = 163,808.98

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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.