Home / 219,632.40-303,090.12-124,138.80

Finding the Fourth Proportional to 219,632.40, 303,090.12 and 124,138.80

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Solution

The fourth proportional to 219,632.40, 303,090.12 and 124,138.80 is: 171,310.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,632.40 : 303,090.12 = 124,138.80 : x
  2. Step 2: Convert to fraction form
    219,632.40/303,090.12 = 124,138.80/x
  3. Step 3: Cross multiply
    219,632.40x = 303,090.12 × 124,138.80
  4. Step 4: Simplify right side
    219,632.40x = 37,625,243,788.66
  5. Step 5: Solve for x
    x = 37,625,243,788.66/219,632.40
  6. Step 6: Final answer
    x = 171,310.08

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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.