Home / 180,429.10-270,643.65-86,944.30

Finding the Fourth Proportional to 180,429.10, 270,643.65 and 86,944.30

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Solution

The fourth proportional to 180,429.10, 270,643.65 and 86,944.30 is: 130,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,429.10 : 270,643.65 = 86,944.30 : x
  2. Step 2: Convert to fraction form
    180,429.10/270,643.65 = 86,944.30/x
  3. Step 3: Cross multiply
    180,429.10x = 270,643.65 × 86,944.30
  4. Step 4: Simplify right side
    180,429.10x = 23,530,922,698.70
  5. Step 5: Solve for x
    x = 23,530,922,698.70/180,429.10
  6. Step 6: Final answer
    x = 130,416.45

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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.