Home / 103,070.18-154,627.34-31,991.33

Finding the Fourth Proportional to 103,070.18, 154,627.34 and 31,991.33

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Solution

The fourth proportional to 103,070.18, 154,627.34 and 31,991.33 is: 47,993.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,070.18 : 154,627.34 = 31,991.33 : x
  2. Step 2: Convert to fraction form
    103,070.18/154,627.34 = 31,991.33/x
  3. Step 3: Cross multiply
    103,070.18x = 154,627.34 × 31,991.33
  4. Step 4: Simplify right side
    103,070.18x = 4,946,734,260.96
  5. Step 5: Solve for x
    x = 4,946,734,260.96/103,070.18
  6. Step 6: Final answer
    x = 47,993.85

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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.