Home / 193,111.52-266,489.88-105,895.40

Finding the Fourth Proportional to 193,111.52, 266,489.88 and 105,895.40

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Solution

The fourth proportional to 193,111.52, 266,489.88 and 105,895.40 is: 146,133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,111.52 : 266,489.88 = 105,895.40 : x
  2. Step 2: Convert to fraction form
    193,111.52/266,489.88 = 105,895.40/x
  3. Step 3: Cross multiply
    193,111.52x = 266,489.88 × 105,895.40
  4. Step 4: Simplify right side
    193,111.52x = 28,220,052,438.55
  5. Step 5: Solve for x
    x = 28,220,052,438.55/193,111.52
  6. Step 6: Final answer
    x = 146,133.45

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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.