Home / 189,779.01-261,895.04-103,738.33

Finding the Fourth Proportional to 189,779.01, 261,895.04 and 103,738.33

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Solution

The fourth proportional to 189,779.01, 261,895.04 and 103,738.33 is: 143,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,779.01 : 261,895.04 = 103,738.33 : x
  2. Step 2: Convert to fraction form
    189,779.01/261,895.04 = 103,738.33/x
  3. Step 3: Cross multiply
    189,779.01x = 261,895.04 × 103,738.33
  4. Step 4: Simplify right side
    189,779.01x = 27,168,554,084.88
  5. Step 5: Solve for x
    x = 27,168,554,084.88/189,779.01
  6. Step 6: Final answer
    x = 143,158.90

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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.