Home / 111,389.72-167,094.41-31,428.39

Finding the Fourth Proportional to 111,389.72, 167,094.41 and 31,428.39

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Solution

The fourth proportional to 111,389.72, 167,094.41 and 31,428.39 is: 47,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,389.72 : 167,094.41 = 31,428.39 : x
  2. Step 2: Convert to fraction form
    111,389.72/167,094.41 = 31,428.39/x
  3. Step 3: Cross multiply
    111,389.72x = 167,094.41 × 31,428.39
  4. Step 4: Simplify right side
    111,389.72x = 5,251,508,362.87
  5. Step 5: Solve for x
    x = 5,251,508,362.87/111,389.72
  6. Step 6: Final answer
    x = 47,145.36

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1.5x scale

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.