Home / 154,220.95-231,305.37-54,357.67

Finding the Fourth Proportional to 154,220.95, 231,305.37 and 54,357.67

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Solution

The fourth proportional to 154,220.95, 231,305.37 and 54,357.67 is: 81,527.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,220.95 : 231,305.37 = 54,357.67 : x
  2. Step 2: Convert to fraction form
    154,220.95/231,305.37 = 54,357.67/x
  3. Step 3: Cross multiply
    154,220.95x = 231,305.37 × 54,357.67
  4. Step 4: Simplify right side
    154,220.95x = 12,573,220,971.69
  5. Step 5: Solve for x
    x = 12,573,220,971.69/154,220.95
  6. Step 6: Final answer
    x = 81,527.32

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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.