Home / 104,188.11-143,779.45-56,441.65

Finding the Fourth Proportional to 104,188.11, 143,779.45 and 56,441.65

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Solution

The fourth proportional to 104,188.11, 143,779.45 and 56,441.65 is: 77,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,188.11 : 143,779.45 = 56,441.65 : x
  2. Step 2: Convert to fraction form
    104,188.11/143,779.45 = 56,441.65/x
  3. Step 3: Cross multiply
    104,188.11x = 143,779.45 × 56,441.65
  4. Step 4: Simplify right side
    104,188.11x = 8,115,149,394.09
  5. Step 5: Solve for x
    x = 8,115,149,394.09/104,188.11
  6. Step 6: Final answer
    x = 77,889.40

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Double scale
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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.