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Finding the Fourth Proportional to 173,085.80, 259,628.70 and 113,988.20

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Solution

The fourth proportional to 173,085.80, 259,628.70 and 113,988.20 is: 170,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,085.80 : 259,628.70 = 113,988.20 : x
  2. Step 2: Convert to fraction form
    173,085.80/259,628.70 = 113,988.20/x
  3. Step 3: Cross multiply
    173,085.80x = 259,628.70 × 113,988.20
  4. Step 4: Simplify right side
    173,085.80x = 29,594,608,181.34
  5. Step 5: Solve for x
    x = 29,594,608,181.34/173,085.80
  6. Step 6: Final answer
    x = 170,982.30

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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.