Home / 186,555.36-279,861.12-66,603.36

Finding the Fourth Proportional to 186,555.36, 279,861.12 and 66,603.36

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Solution

The fourth proportional to 186,555.36, 279,861.12 and 66,603.36 is: 99,915.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,555.36 : 279,861.12 = 66,603.36 : x
  2. Step 2: Convert to fraction form
    186,555.36/279,861.12 = 66,603.36/x
  3. Step 3: Cross multiply
    186,555.36x = 279,861.12 × 66,603.36
  4. Step 4: Simplify right side
    186,555.36x = 18,639,690,925.36
  5. Step 5: Solve for x
    x = 18,639,690,925.36/186,555.36
  6. Step 6: Final answer
    x = 99,915.07

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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.