Home / 200,024.64-275,903.91-128,291.04

Finding the Fourth Proportional to 200,024.64, 275,903.91 and 128,291.04

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Solution

The fourth proportional to 200,024.64, 275,903.91 and 128,291.04 is: 176,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,024.64 : 275,903.91 = 128,291.04 : x
  2. Step 2: Convert to fraction form
    200,024.64/275,903.91 = 128,291.04/x
  3. Step 3: Cross multiply
    200,024.64x = 275,903.91 × 128,291.04
  4. Step 4: Simplify right side
    200,024.64x = 35,395,999,553.97
  5. Step 5: Solve for x
    x = 35,395,999,553.97/200,024.64
  6. Step 6: Final answer
    x = 176,958.20

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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.