Home / 285,167.51-427,664.85-118,916.63

Finding the Fourth Proportional to 285,167.51, 427,664.85 and 118,916.63

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Solution

The fourth proportional to 285,167.51, 427,664.85 and 118,916.63 is: 178,338.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,167.51 : 427,664.85 = 118,916.63 : x
  2. Step 2: Convert to fraction form
    285,167.51/427,664.85 = 118,916.63/x
  3. Step 3: Cross multiply
    285,167.51x = 427,664.85 × 118,916.63
  4. Step 4: Simplify right side
    285,167.51x = 50,856,460,593.13
  5. Step 5: Solve for x
    x = 50,856,460,593.13/285,167.51
  6. Step 6: Final answer
    x = 178,338.91

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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.