Home / 165,674.20-248,511.30-139,430.20

Finding the Fourth Proportional to 165,674.20, 248,511.30 and 139,430.20

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Solution

The fourth proportional to 165,674.20, 248,511.30 and 139,430.20 is: 209,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,674.20 : 248,511.30 = 139,430.20 : x
  2. Step 2: Convert to fraction form
    165,674.20/248,511.30 = 139,430.20/x
  3. Step 3: Cross multiply
    165,674.20x = 248,511.30 × 139,430.20
  4. Step 4: Simplify right side
    165,674.20x = 34,649,980,261.26
  5. Step 5: Solve for x
    x = 34,649,980,261.26/165,674.20
  6. Step 6: Final answer
    x = 209,145.30

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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.