Home / 145,554.19-200,863.36-81,022.40

Finding the Fourth Proportional to 145,554.19, 200,863.36 and 81,022.40

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Solution

The fourth proportional to 145,554.19, 200,863.36 and 81,022.40 is: 111,810.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,554.19 : 200,863.36 = 81,022.40 : x
  2. Step 2: Convert to fraction form
    145,554.19/200,863.36 = 81,022.40/x
  3. Step 3: Cross multiply
    145,554.19x = 200,863.36 × 81,022.40
  4. Step 4: Simplify right side
    145,554.19x = 16,274,431,499.26
  5. Step 5: Solve for x
    x = 16,274,431,499.26/145,554.19
  6. Step 6: Final answer
    x = 111,810.12

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1.5x scale

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.