Home / 145,815.15-199,912.53-143,157.93

Finding the Fourth Proportional to 145,815.15, 199,912.53 and 143,157.93

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Solution

The fourth proportional to 145,815.15, 199,912.53 and 143,157.93 is: 196,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,815.15 : 199,912.53 = 143,157.93 : x
  2. Step 2: Convert to fraction form
    145,815.15/199,912.53 = 143,157.93/x
  3. Step 3: Cross multiply
    145,815.15x = 199,912.53 × 143,157.93
  4. Step 4: Simplify right side
    145,815.15x = 28,619,063,975.86
  5. Step 5: Solve for x
    x = 28,619,063,975.86/145,815.15
  6. Step 6: Final answer
    x = 196,269.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.