Home / 152,980.08-211,135.32-120,640.56

Finding the Fourth Proportional to 152,980.08, 211,135.32 and 120,640.56

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Solution

The fourth proportional to 152,980.08, 211,135.32 and 120,640.56 is: 166,501.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,980.08 : 211,135.32 = 120,640.56 : x
  2. Step 2: Convert to fraction form
    152,980.08/211,135.32 = 120,640.56/x
  3. Step 3: Cross multiply
    152,980.08x = 211,135.32 × 120,640.56
  4. Step 4: Simplify right side
    152,980.08x = 25,471,483,240.58
  5. Step 5: Solve for x
    x = 25,471,483,240.58/152,980.08
  6. Step 6: Final answer
    x = 166,501.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.