Home / 109,916.44-151,690.56-69,615.40

Finding the Fourth Proportional to 109,916.44, 151,690.56 and 69,615.40

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Solution

The fourth proportional to 109,916.44, 151,690.56 and 69,615.40 is: 96,072.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,916.44 : 151,690.56 = 69,615.40 : x
  2. Step 2: Convert to fraction form
    109,916.44/151,690.56 = 69,615.40/x
  3. Step 3: Cross multiply
    109,916.44x = 151,690.56 × 69,615.40
  4. Step 4: Simplify right side
    109,916.44x = 10,559,999,010.62
  5. Step 5: Solve for x
    x = 10,559,999,010.62/109,916.44
  6. Step 6: Final answer
    x = 96,072.97

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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.