Home / 145,504.54-200,820.99-107,461.72

Finding the Fourth Proportional to 145,504.54, 200,820.99 and 107,461.72

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Solution

The fourth proportional to 145,504.54, 200,820.99 and 107,461.72 is: 148,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,504.54 : 200,820.99 = 107,461.72 : x
  2. Step 2: Convert to fraction form
    145,504.54/200,820.99 = 107,461.72/x
  3. Step 3: Cross multiply
    145,504.54x = 200,820.99 × 107,461.72
  4. Step 4: Simplify right side
    145,504.54x = 21,580,568,997.50
  5. Step 5: Solve for x
    x = 21,580,568,997.50/145,504.54
  6. Step 6: Final answer
    x = 148,315.43

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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.