Home / 103,131.36-154,756.68-55,746.72

Finding the Fourth Proportional to 103,131.36, 154,756.68 and 55,746.72

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Solution

The fourth proportional to 103,131.36, 154,756.68 and 55,746.72 is: 83,652.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,131.36 : 154,756.68 = 55,746.72 : x
  2. Step 2: Convert to fraction form
    103,131.36/154,756.68 = 55,746.72/x
  3. Step 3: Cross multiply
    103,131.36x = 154,756.68 × 55,746.72
  4. Step 4: Simplify right side
    103,131.36x = 8,627,177,308.09
  5. Step 5: Solve for x
    x = 8,627,177,308.09/103,131.36
  6. Step 6: Final answer
    x = 83,652.32

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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.