Home / 104,005.67-143,538.28-63,746.19

Finding the Fourth Proportional to 104,005.67, 143,538.28 and 63,746.19

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Solution

The fourth proportional to 104,005.67, 143,538.28 and 63,746.19 is: 87,976.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,005.67 : 143,538.28 = 63,746.19 : x
  2. Step 2: Convert to fraction form
    104,005.67/143,538.28 = 63,746.19/x
  3. Step 3: Cross multiply
    104,005.67x = 143,538.28 × 63,746.19
  4. Step 4: Simplify right side
    104,005.67x = 9,150,018,309.79
  5. Step 5: Solve for x
    x = 9,150,018,309.79/104,005.67
  6. Step 6: Final answer
    x = 87,976.15

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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.