Home / 145,362.15-218,043.23-105,704.55

Finding the Fourth Proportional to 145,362.15, 218,043.23 and 105,704.55

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Solution

The fourth proportional to 145,362.15, 218,043.23 and 105,704.55 is: 158,556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,362.15 : 218,043.23 = 105,704.55 : x
  2. Step 2: Convert to fraction form
    145,362.15/218,043.23 = 105,704.55/x
  3. Step 3: Cross multiply
    145,362.15x = 218,043.23 × 105,704.55
  4. Step 4: Simplify right side
    145,362.15x = 23,048,160,979.17
  5. Step 5: Solve for x
    x = 23,048,160,979.17/145,362.15
  6. Step 6: Final answer
    x = 158,556.83

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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.