Home / 145,435.32-218,157.75-40,245.48

Finding the Fourth Proportional to 145,435.32, 218,157.75 and 40,245.48

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Solution

The fourth proportional to 145,435.32, 218,157.75 and 40,245.48 is: 60,369.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,435.32 : 218,157.75 = 40,245.48 : x
  2. Step 2: Convert to fraction form
    145,435.32/218,157.75 = 40,245.48/x
  3. Step 3: Cross multiply
    145,435.32x = 218,157.75 × 40,245.48
  4. Step 4: Simplify right side
    145,435.32x = 8,779,863,364.47
  5. Step 5: Solve for x
    x = 8,779,863,364.47/145,435.32
  6. Step 6: Final answer
    x = 60,369.54

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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.