Home / 141,916.64-195,837.12-78,243.52

Finding the Fourth Proportional to 141,916.64, 195,837.12 and 78,243.52

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Solution

The fourth proportional to 141,916.64, 195,837.12 and 78,243.52 is: 107,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,916.64 : 195,837.12 = 78,243.52 : x
  2. Step 2: Convert to fraction form
    141,916.64/195,837.12 = 78,243.52/x
  3. Step 3: Cross multiply
    141,916.64x = 195,837.12 × 78,243.52
  4. Step 4: Simplify right side
    141,916.64x = 15,322,985,615.46
  5. Step 5: Solve for x
    x = 15,322,985,615.46/141,916.64
  6. Step 6: Final answer
    x = 107,971.73

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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.