Home / 154,208.20-231,312.30-69,935.80

Finding the Fourth Proportional to 154,208.20, 231,312.30 and 69,935.80

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Solution

The fourth proportional to 154,208.20, 231,312.30 and 69,935.80 is: 104,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,208.20 : 231,312.30 = 69,935.80 : x
  2. Step 2: Convert to fraction form
    154,208.20/231,312.30 = 69,935.80/x
  3. Step 3: Cross multiply
    154,208.20x = 231,312.30 × 69,935.80
  4. Step 4: Simplify right side
    154,208.20x = 16,177,010,750.34
  5. Step 5: Solve for x
    x = 16,177,010,750.34/154,208.20
  6. Step 6: Final answer
    x = 104,903.70

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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.