Home / 115,401.78-173,088.36-31,168.80

Finding the Fourth Proportional to 115,401.78, 173,088.36 and 31,168.80

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Solution

The fourth proportional to 115,401.78, 173,088.36 and 31,168.80 is: 46,749.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,401.78 : 173,088.36 = 31,168.80 : x
  2. Step 2: Convert to fraction form
    115,401.78/173,088.36 = 31,168.80/x
  3. Step 3: Cross multiply
    115,401.78x = 173,088.36 × 31,168.80
  4. Step 4: Simplify right side
    115,401.78x = 5,394,956,475.17
  5. Step 5: Solve for x
    x = 5,394,956,475.17/115,401.78
  6. Step 6: Final answer
    x = 46,749.34

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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.