Home / 145,720.14-218,580.62-40,539.21

Finding the Fourth Proportional to 145,720.14, 218,580.62 and 40,539.21

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Solution

The fourth proportional to 145,720.14, 218,580.62 and 40,539.21 is: 60,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,720.14 : 218,580.62 = 40,539.21 : x
  2. Step 2: Convert to fraction form
    145,720.14/218,580.62 = 40,539.21/x
  3. Step 3: Cross multiply
    145,720.14x = 218,580.62 × 40,539.21
  4. Step 4: Simplify right side
    145,720.14x = 8,861,085,453.41
  5. Step 5: Solve for x
    x = 8,861,085,453.41/145,720.14
  6. Step 6: Final answer
    x = 60,808.93

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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.