Home / 172,887.40-259,331.10-102,730.60

Finding the Fourth Proportional to 172,887.40, 259,331.10 and 102,730.60

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Solution

The fourth proportional to 172,887.40, 259,331.10 and 102,730.60 is: 154,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,887.40 : 259,331.10 = 102,730.60 : x
  2. Step 2: Convert to fraction form
    172,887.40/259,331.10 = 102,730.60/x
  3. Step 3: Cross multiply
    172,887.40x = 259,331.10 × 102,730.60
  4. Step 4: Simplify right side
    172,887.40x = 26,641,239,501.66
  5. Step 5: Solve for x
    x = 26,641,239,501.66/172,887.40
  6. Step 6: Final answer
    x = 154,095.90

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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.