Home / 108,984.72-150,416.74-90,806.60

Finding the Fourth Proportional to 108,984.72, 150,416.74 and 90,806.60

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Solution

The fourth proportional to 108,984.72, 150,416.74 and 90,806.60 is: 125,327.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,984.72 : 150,416.74 = 90,806.60 : x
  2. Step 2: Convert to fraction form
    108,984.72/150,416.74 = 90,806.60/x
  3. Step 3: Cross multiply
    108,984.72x = 150,416.74 × 90,806.60
  4. Step 4: Simplify right side
    108,984.72x = 13,658,832,742.48
  5. Step 5: Solve for x
    x = 13,658,832,742.48/108,984.72
  6. Step 6: Final answer
    x = 125,327.96

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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.