Home / 141,837.89-195,732.86-78,174.32

Finding the Fourth Proportional to 141,837.89, 195,732.86 and 78,174.32

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Solution

The fourth proportional to 141,837.89, 195,732.86 and 78,174.32 is: 107,878.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,837.89 : 195,732.86 = 78,174.32 : x
  2. Step 2: Convert to fraction form
    141,837.89/195,732.86 = 78,174.32/x
  3. Step 3: Cross multiply
    141,837.89x = 195,732.86 × 78,174.32
  4. Step 4: Simplify right side
    141,837.89x = 15,301,281,862.62
  5. Step 5: Solve for x
    x = 15,301,281,862.62/141,837.89
  6. Step 6: Final answer
    x = 107,878.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.