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Finding the Fourth Proportional to 172,173.75, 257,924.31 and 97,066.72

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Solution

The fourth proportional to 172,173.75, 257,924.31 and 97,066.72 is: 145,410.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,173.75 : 257,924.31 = 97,066.72 : x
  2. Step 2: Convert to fraction form
    172,173.75/257,924.31 = 97,066.72/x
  3. Step 3: Cross multiply
    172,173.75x = 257,924.31 × 97,066.72
  4. Step 4: Simplify right side
    172,173.75x = 25,035,866,779.96
  5. Step 5: Solve for x
    x = 25,035,866,779.96/172,173.75
  6. Step 6: Final answer
    x = 145,410.48

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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.