Home / 104,856.35-144,703.40-57,109.64

Finding the Fourth Proportional to 104,856.35, 144,703.40 and 57,109.64

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Solution

The fourth proportional to 104,856.35, 144,703.40 and 57,109.64 is: 78,812.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,856.35 : 144,703.40 = 57,109.64 : x
  2. Step 2: Convert to fraction form
    104,856.35/144,703.40 = 57,109.64/x
  3. Step 3: Cross multiply
    104,856.35x = 144,703.40 × 57,109.64
  4. Step 4: Simplify right side
    104,856.35x = 8,263,958,071.71
  5. Step 5: Solve for x
    x = 8,263,958,071.71/104,856.35
  6. Step 6: Final answer
    x = 78,812.19

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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.