Home / 145,578.24-200,895.84-81,911.04

Finding the Fourth Proportional to 145,578.24, 200,895.84 and 81,911.04

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Solution

The fourth proportional to 145,578.24, 200,895.84 and 81,911.04 is: 113,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,578.24 : 200,895.84 = 81,911.04 : x
  2. Step 2: Convert to fraction form
    145,578.24/200,895.84 = 81,911.04/x
  3. Step 3: Cross multiply
    145,578.24x = 200,895.84 × 81,911.04
  4. Step 4: Simplify right side
    145,578.24x = 16,455,587,186.07
  5. Step 5: Solve for x
    x = 16,455,587,186.07/145,578.24
  6. Step 6: Final answer
    x = 113,036.04

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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.