Home / 145,218.56-200,394.24-81,559.04

Finding the Fourth Proportional to 145,218.56, 200,394.24 and 81,559.04

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Solution

The fourth proportional to 145,218.56, 200,394.24 and 81,559.04 is: 112,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,218.56 : 200,394.24 = 81,559.04 : x
  2. Step 2: Convert to fraction form
    145,218.56/200,394.24 = 81,559.04/x
  3. Step 3: Cross multiply
    145,218.56x = 200,394.24 × 81,559.04
  4. Step 4: Simplify right side
    145,218.56x = 16,343,961,835.93
  5. Step 5: Solve for x
    x = 16,343,961,835.93/145,218.56
  6. Step 6: Final answer
    x = 112,547.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.