Home / 153,825.92-212,279.81-84,915.44

Finding the Fourth Proportional to 153,825.92, 212,279.81 and 84,915.44

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Solution

The fourth proportional to 153,825.92, 212,279.81 and 84,915.44 is: 117,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,825.92 : 212,279.81 = 84,915.44 : x
  2. Step 2: Convert to fraction form
    153,825.92/212,279.81 = 84,915.44/x
  3. Step 3: Cross multiply
    153,825.92x = 212,279.81 × 84,915.44
  4. Step 4: Simplify right side
    153,825.92x = 18,025,831,983.29
  5. Step 5: Solve for x
    x = 18,025,831,983.29/153,825.92
  6. Step 6: Final answer
    x = 117,183.32

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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.