Home / 193,033.20-266,053.12-128,386.80

Finding the Fourth Proportional to 193,033.20, 266,053.12 and 128,386.80

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Solution

The fourth proportional to 193,033.20, 266,053.12 and 128,386.80 is: 176,952.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,033.20 : 266,053.12 = 128,386.80 : x
  2. Step 2: Convert to fraction form
    193,033.20/266,053.12 = 128,386.80/x
  3. Step 3: Cross multiply
    193,033.20x = 266,053.12 × 128,386.80
  4. Step 4: Simplify right side
    193,033.20x = 34,157,708,706.82
  5. Step 5: Solve for x
    x = 34,157,708,706.82/193,033.20
  6. Step 6: Final answer
    x = 176,952.51

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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.