Home / 186,211.51-279,319.85-53,091.76

Finding the Fourth Proportional to 186,211.51, 279,319.85 and 53,091.76

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Solution

The fourth proportional to 186,211.51, 279,319.85 and 53,091.76 is: 79,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,211.51 : 279,319.85 = 53,091.76 : x
  2. Step 2: Convert to fraction form
    186,211.51/279,319.85 = 53,091.76/x
  3. Step 3: Cross multiply
    186,211.51x = 279,319.85 × 53,091.76
  4. Step 4: Simplify right side
    186,211.51x = 14,829,582,497.14
  5. Step 5: Solve for x
    x = 14,829,582,497.14/186,211.51
  6. Step 6: Final answer
    x = 79,638.38

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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.