Home / 104,071.35-143,631.18-63,790.86

Finding the Fourth Proportional to 104,071.35, 143,631.18 and 63,790.86

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Solution

The fourth proportional to 104,071.35, 143,631.18 and 63,790.86 is: 88,039.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,071.35 : 143,631.18 = 63,790.86 : x
  2. Step 2: Convert to fraction form
    104,071.35/143,631.18 = 63,790.86/x
  3. Step 3: Cross multiply
    104,071.35x = 143,631.18 × 63,790.86
  4. Step 4: Simplify right side
    104,071.35x = 9,162,356,495.01
  5. Step 5: Solve for x
    x = 9,162,356,495.01/104,071.35
  6. Step 6: Final answer
    x = 88,039.18

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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.