Home / 155,916.53-215,164.78-84,296.55

Finding the Fourth Proportional to 155,916.53, 215,164.78 and 84,296.55

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Solution

The fourth proportional to 155,916.53, 215,164.78 and 84,296.55 is: 116,329.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,916.53 : 215,164.78 = 84,296.55 : x
  2. Step 2: Convert to fraction form
    155,916.53/215,164.78 = 84,296.55/x
  3. Step 3: Cross multiply
    155,916.53x = 215,164.78 × 84,296.55
  4. Step 4: Simplify right side
    155,916.53x = 18,137,648,424.77
  5. Step 5: Solve for x
    x = 18,137,648,424.77/155,916.53
  6. Step 6: Final answer
    x = 116,329.22

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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.