Home / 155,916.62-215,164.29-84,296.60

Finding the Fourth Proportional to 155,916.62, 215,164.29 and 84,296.60

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Solution

The fourth proportional to 155,916.62, 215,164.29 and 84,296.60 is: 116,328.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,916.62 : 215,164.29 = 84,296.60 : x
  2. Step 2: Convert to fraction form
    155,916.62/215,164.29 = 84,296.60/x
  3. Step 3: Cross multiply
    155,916.62x = 215,164.29 × 84,296.60
  4. Step 4: Simplify right side
    155,916.62x = 18,137,618,088.41
  5. Step 5: Solve for x
    x = 18,137,618,088.41/155,916.62
  6. Step 6: Final answer
    x = 116,328.96

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1.5x scale

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.