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Finding the Fourth Proportional to 103,657.58, 143,054.73 and 58,339.93

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Solution

The fourth proportional to 103,657.58, 143,054.73 and 58,339.93 is: 80,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,657.58 : 143,054.73 = 58,339.93 : x
  2. Step 2: Convert to fraction form
    103,657.58/143,054.73 = 58,339.93/x
  3. Step 3: Cross multiply
    103,657.58x = 143,054.73 × 58,339.93
  4. Step 4: Simplify right side
    103,657.58x = 8,345,802,934.37
  5. Step 5: Solve for x
    x = 8,345,802,934.37/103,657.58
  6. Step 6: Final answer
    x = 80,513.19

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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.