Home / 100,615.35-138,846.51-55,293.24

Finding the Fourth Proportional to 100,615.35, 138,846.51 and 55,293.24

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Solution

The fourth proportional to 100,615.35, 138,846.51 and 55,293.24 is: 76,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,615.35 : 138,846.51 = 55,293.24 : x
  2. Step 2: Convert to fraction form
    100,615.35/138,846.51 = 55,293.24/x
  3. Step 3: Cross multiply
    100,615.35x = 138,846.51 × 55,293.24
  4. Step 4: Simplify right side
    100,615.35x = 7,677,273,400.59
  5. Step 5: Solve for x
    x = 7,677,273,400.59/100,615.35
  6. Step 6: Final answer
    x = 76,303.20

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1.5x scale

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.