Home / 165,904.20-248,856.30-139,984.20

Finding the Fourth Proportional to 165,904.20, 248,856.30 and 139,984.20

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Solution

The fourth proportional to 165,904.20, 248,856.30 and 139,984.20 is: 209,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,904.20 : 248,856.30 = 139,984.20 : x
  2. Step 2: Convert to fraction form
    165,904.20/248,856.30 = 139,984.20/x
  3. Step 3: Cross multiply
    165,904.20x = 248,856.30 × 139,984.20
  4. Step 4: Simplify right side
    165,904.20x = 34,835,950,070.46
  5. Step 5: Solve for x
    x = 34,835,950,070.46/165,904.20
  6. Step 6: Final answer
    x = 209,976.30

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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.