Home / 108,173.50-149,182.46-90,084.13

Finding the Fourth Proportional to 108,173.50, 149,182.46 and 90,084.13

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Solution

The fourth proportional to 108,173.50, 149,182.46 and 90,084.13 is: 124,235.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,173.50 : 149,182.46 = 90,084.13 : x
  2. Step 2: Convert to fraction form
    108,173.50/149,182.46 = 90,084.13/x
  3. Step 3: Cross multiply
    108,173.50x = 149,182.46 × 90,084.13
  4. Step 4: Simplify right side
    108,173.50x = 13,438,971,669.94
  5. Step 5: Solve for x
    x = 13,438,971,669.94/108,173.50
  6. Step 6: Final answer
    x = 124,235.34

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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.