Home / 134,317.11-201,211.59-78,039.09

Finding the Fourth Proportional to 134,317.11, 201,211.59 and 78,039.09

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Solution

The fourth proportional to 134,317.11, 201,211.59 and 78,039.09 is: 116,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,317.11 : 201,211.59 = 78,039.09 : x
  2. Step 2: Convert to fraction form
    134,317.11/201,211.59 = 78,039.09/x
  3. Step 3: Cross multiply
    134,317.11x = 201,211.59 × 78,039.09
  4. Step 4: Simplify right side
    134,317.11x = 15,702,369,381.05
  5. Step 5: Solve for x
    x = 15,702,369,381.05/134,317.11
  6. Step 6: Final answer
    x = 116,905.21

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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.