Home / 154,157.80-231,083.10-70,906.60

Finding the Fourth Proportional to 154,157.80, 231,083.10 and 70,906.60

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Solution

The fourth proportional to 154,157.80, 231,083.10 and 70,906.60 is: 106,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,157.80 : 231,083.10 = 70,906.60 : x
  2. Step 2: Convert to fraction form
    154,157.80/231,083.10 = 70,906.60/x
  3. Step 3: Cross multiply
    154,157.80x = 231,083.10 × 70,906.60
  4. Step 4: Simplify right side
    154,157.80x = 16,385,316,938.46
  5. Step 5: Solve for x
    x = 16,385,316,938.46/154,157.80
  6. Step 6: Final answer
    x = 106,289.25

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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.