Home / 186,917.86-280,307.53-66,956.11

Finding the Fourth Proportional to 186,917.86, 280,307.53 and 66,956.11

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Solution

The fourth proportional to 186,917.86, 280,307.53 and 66,956.11 is: 100,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,917.86 : 280,307.53 = 66,956.11 : x
  2. Step 2: Convert to fraction form
    186,917.86/280,307.53 = 66,956.11/x
  3. Step 3: Cross multiply
    186,917.86x = 280,307.53 × 66,956.11
  4. Step 4: Simplify right side
    186,917.86x = 18,768,301,812.51
  5. Step 5: Solve for x
    x = 18,768,301,812.51/186,917.86
  6. Step 6: Final answer
    x = 100,409.36

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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.