Home / 145,617.32-218,457.14-82,467.29

Finding the Fourth Proportional to 145,617.32, 218,457.14 and 82,467.29

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Solution

The fourth proportional to 145,617.32, 218,457.14 and 82,467.29 is: 123,718.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,617.32 : 218,457.14 = 82,467.29 : x
  2. Step 2: Convert to fraction form
    145,617.32/218,457.14 = 82,467.29/x
  3. Step 3: Cross multiply
    145,617.32x = 218,457.14 × 82,467.29
  4. Step 4: Simplify right side
    145,617.32x = 18,015,566,812.33
  5. Step 5: Solve for x
    x = 18,015,566,812.33/145,617.32
  6. Step 6: Final answer
    x = 123,718.58

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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.