Home / 186,045.28-279,065.64-45,805.12

Finding the Fourth Proportional to 186,045.28, 279,065.64 and 45,805.12

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Solution

The fourth proportional to 186,045.28, 279,065.64 and 45,805.12 is: 68,707.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,045.28 : 279,065.64 = 45,805.12 : x
  2. Step 2: Convert to fraction form
    186,045.28/279,065.64 = 45,805.12/x
  3. Step 3: Cross multiply
    186,045.28x = 279,065.64 × 45,805.12
  4. Step 4: Simplify right side
    186,045.28x = 12,782,635,128.08
  5. Step 5: Solve for x
    x = 12,782,635,128.08/186,045.28
  6. Step 6: Final answer
    x = 68,707.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.