Home / 145,928.55-218,763.63-57,245.70

Finding the Fourth Proportional to 145,928.55, 218,763.63 and 57,245.70

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Solution

The fourth proportional to 145,928.55, 218,763.63 and 57,245.70 is: 85,817.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,928.55 : 218,763.63 = 57,245.70 : x
  2. Step 2: Convert to fraction form
    145,928.55/218,763.63 = 57,245.70/x
  3. Step 3: Cross multiply
    145,928.55x = 218,763.63 × 57,245.70
  4. Step 4: Simplify right side
    145,928.55x = 12,523,277,133.89
  5. Step 5: Solve for x
    x = 12,523,277,133.89/145,928.55
  6. Step 6: Final answer
    x = 85,817.87

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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.