Home / 102,590.72-141,558.16-68,544.60

Finding the Fourth Proportional to 102,590.72, 141,558.16 and 68,544.60

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Solution

The fourth proportional to 102,590.72, 141,558.16 and 68,544.60 is: 94,580.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,590.72 : 141,558.16 = 68,544.60 : x
  2. Step 2: Convert to fraction form
    102,590.72/141,558.16 = 68,544.60/x
  3. Step 3: Cross multiply
    102,590.72x = 141,558.16 × 68,544.60
  4. Step 4: Simplify right side
    102,590.72x = 9,703,047,453.94
  5. Step 5: Solve for x
    x = 9,703,047,453.94/102,590.72
  6. Step 6: Final answer
    x = 94,580.17

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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.