Home / 172,125.10-258,224.10-52,172.20

Finding the Fourth Proportional to 172,125.10, 258,224.10 and 52,172.20

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Solution

The fourth proportional to 172,125.10, 258,224.10 and 52,172.20 is: 78,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,125.10 : 258,224.10 = 52,172.20 : x
  2. Step 2: Convert to fraction form
    172,125.10/258,224.10 = 52,172.20/x
  3. Step 3: Cross multiply
    172,125.10x = 258,224.10 × 52,172.20
  4. Step 4: Simplify right side
    172,125.10x = 13,472,119,390.02
  5. Step 5: Solve for x
    x = 13,472,119,390.02/172,125.10
  6. Step 6: Final answer
    x = 78,269.35

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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.