Home / 154,210.20-231,315.30-69,937.80

Finding the Fourth Proportional to 154,210.20, 231,315.30 and 69,937.80

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Solution

The fourth proportional to 154,210.20, 231,315.30 and 69,937.80 is: 104,906.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,210.20 : 231,315.30 = 69,937.80 : x
  2. Step 2: Convert to fraction form
    154,210.20/231,315.30 = 69,937.80/x
  3. Step 3: Cross multiply
    154,210.20x = 231,315.30 × 69,937.80
  4. Step 4: Simplify right side
    154,210.20x = 16,177,683,188.34
  5. Step 5: Solve for x
    x = 16,177,683,188.34/154,210.20
  6. Step 6: Final answer
    x = 104,906.70

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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.