Home / 199,620.01-275,476.24-128,000.32

Finding the Fourth Proportional to 199,620.01, 275,476.24 and 128,000.32

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Solution

The fourth proportional to 199,620.01, 275,476.24 and 128,000.32 is: 176,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,620.01 : 275,476.24 = 128,000.32 : x
  2. Step 2: Convert to fraction form
    199,620.01/275,476.24 = 128,000.32/x
  3. Step 3: Cross multiply
    199,620.01x = 275,476.24 × 128,000.32
  4. Step 4: Simplify right side
    199,620.01x = 35,261,046,343.71
  5. Step 5: Solve for x
    x = 35,261,046,343.71/199,620.01
  6. Step 6: Final answer
    x = 176,640.84

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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.