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Finding the Fourth Proportional to 172,511.55, 258,779.48 and 97,667.55

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Solution

The fourth proportional to 172,511.55, 258,779.48 and 97,667.55 is: 146,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,511.55 : 258,779.48 = 97,667.55 : x
  2. Step 2: Convert to fraction form
    172,511.55/258,779.48 = 97,667.55/x
  3. Step 3: Cross multiply
    172,511.55x = 258,779.48 × 97,667.55
  4. Step 4: Simplify right side
    172,511.55x = 25,274,357,313.54
  5. Step 5: Solve for x
    x = 25,274,357,313.54/172,511.55
  6. Step 6: Final answer
    x = 146,508.20

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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.