Home / 199,886.02-275,816.06-128,362.92

Finding the Fourth Proportional to 199,886.02, 275,816.06 and 128,362.92

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Solution

The fourth proportional to 199,886.02, 275,816.06 and 128,362.92 is: 177,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,886.02 : 275,816.06 = 128,362.92 : x
  2. Step 2: Convert to fraction form
    199,886.02/275,816.06 = 128,362.92/x
  3. Step 3: Cross multiply
    199,886.02x = 275,816.06 × 128,362.92
  4. Step 4: Simplify right side
    199,886.02x = 35,404,554,202.68
  5. Step 5: Solve for x
    x = 35,404,554,202.68/199,886.02
  6. Step 6: Final answer
    x = 177,123.72

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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.