Home / 193,034.20-266,054.50-128,387.80

Finding the Fourth Proportional to 193,034.20, 266,054.50 and 128,387.80

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Solution

The fourth proportional to 193,034.20, 266,054.50 and 128,387.80 is: 176,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,034.20 : 266,054.50 = 128,387.80 : x
  2. Step 2: Convert to fraction form
    193,034.20/266,054.50 = 128,387.80/x
  3. Step 3: Cross multiply
    193,034.20x = 266,054.50 × 128,387.80
  4. Step 4: Simplify right side
    193,034.20x = 34,158,151,935.10
  5. Step 5: Solve for x
    x = 34,158,151,935.10/193,034.20
  6. Step 6: Final answer
    x = 176,953.89

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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.