Home / 259,747.40-389,621.10-112,003.40

Finding the Fourth Proportional to 259,747.40, 389,621.10 and 112,003.40

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Solution

The fourth proportional to 259,747.40, 389,621.10 and 112,003.40 is: 168,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,747.40 : 389,621.10 = 112,003.40 : x
  2. Step 2: Convert to fraction form
    259,747.40/389,621.10 = 112,003.40/x
  3. Step 3: Cross multiply
    259,747.40x = 389,621.10 × 112,003.40
  4. Step 4: Simplify right side
    259,747.40x = 43,638,887,911.74
  5. Step 5: Solve for x
    x = 43,638,887,911.74/259,747.40
  6. Step 6: Final answer
    x = 168,005.10

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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.