Home / 145,022.09-217,539.03-69,081.59

Finding the Fourth Proportional to 145,022.09, 217,539.03 and 69,081.59

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Solution

The fourth proportional to 145,022.09, 217,539.03 and 69,081.59 is: 103,625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,022.09 : 217,539.03 = 69,081.59 : x
  2. Step 2: Convert to fraction form
    145,022.09/217,539.03 = 69,081.59/x
  3. Step 3: Cross multiply
    145,022.09x = 217,539.03 × 69,081.59
  4. Step 4: Simplify right side
    145,022.09x = 15,027,941,673.18
  5. Step 5: Solve for x
    x = 15,027,941,673.18/145,022.09
  6. Step 6: Final answer
    x = 103,625.19

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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.