Home / 146,378.53-201,979.41-85,138.27

Finding the Fourth Proportional to 146,378.53, 201,979.41 and 85,138.27

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Solution

The fourth proportional to 146,378.53, 201,979.41 and 85,138.27 is: 117,477.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,378.53 : 201,979.41 = 85,138.27 : x
  2. Step 2: Convert to fraction form
    146,378.53/201,979.41 = 85,138.27/x
  3. Step 3: Cross multiply
    146,378.53x = 201,979.41 × 85,138.27
  4. Step 4: Simplify right side
    146,378.53x = 17,196,177,543.02
  5. Step 5: Solve for x
    x = 17,196,177,543.02/146,378.53
  6. Step 6: Final answer
    x = 117,477.46

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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.