Home / 190,123.59-262,370.56-105,240.65

Finding the Fourth Proportional to 190,123.59, 262,370.56 and 105,240.65

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Solution

The fourth proportional to 190,123.59, 262,370.56 and 105,240.65 is: 145,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,123.59 : 262,370.56 = 105,240.65 : x
  2. Step 2: Convert to fraction form
    190,123.59/262,370.56 = 105,240.65/x
  3. Step 3: Cross multiply
    190,123.59x = 262,370.56 × 105,240.65
  4. Step 4: Simplify right side
    190,123.59x = 27,612,047,978.82
  5. Step 5: Solve for x
    x = 27,612,047,978.82/190,123.59
  6. Step 6: Final answer
    x = 145,232.10

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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.