Home / 186,023.81-256,721.63-105,452.90

Finding the Fourth Proportional to 186,023.81, 256,721.63 and 105,452.90

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Solution

The fourth proportional to 186,023.81, 256,721.63 and 105,452.90 is: 145,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,023.81 : 256,721.63 = 105,452.90 : x
  2. Step 2: Convert to fraction form
    186,023.81/256,721.63 = 105,452.90/x
  3. Step 3: Cross multiply
    186,023.81x = 256,721.63 × 105,452.90
  4. Step 4: Simplify right side
    186,023.81x = 27,072,040,376.23
  5. Step 5: Solve for x
    x = 27,072,040,376.23/186,023.81
  6. Step 6: Final answer
    x = 145,529.97

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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.