Home / 108,133.56-149,290.02-74,197.80

Finding the Fourth Proportional to 108,133.56, 149,290.02 and 74,197.80

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Solution

The fourth proportional to 108,133.56, 149,290.02 and 74,197.80 is: 102,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,133.56 : 149,290.02 = 74,197.80 : x
  2. Step 2: Convert to fraction form
    108,133.56/149,290.02 = 74,197.80/x
  3. Step 3: Cross multiply
    108,133.56x = 149,290.02 × 74,197.80
  4. Step 4: Simplify right side
    108,133.56x = 11,076,991,045.96
  5. Step 5: Solve for x
    x = 11,076,991,045.96/108,133.56
  6. Step 6: Final answer
    x = 102,438.05

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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.