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Finding the Fourth Proportional to 103,632.48, 143,012.81 and 58,920.48

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Solution

The fourth proportional to 103,632.48, 143,012.81 and 58,920.48 is: 81,310.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,632.48 : 143,012.81 = 58,920.48 : x
  2. Step 2: Convert to fraction form
    103,632.48/143,012.81 = 58,920.48/x
  3. Step 3: Cross multiply
    103,632.48x = 143,012.81 × 58,920.48
  4. Step 4: Simplify right side
    103,632.48x = 8,426,383,558.65
  5. Step 5: Solve for x
    x = 8,426,383,558.65/103,632.48
  6. Step 6: Final answer
    x = 81,310.26

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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.