Home / 141,710.92-195,569.93-78,048.70

Finding the Fourth Proportional to 141,710.92, 195,569.93 and 78,048.70

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Solution

The fourth proportional to 141,710.92, 195,569.93 and 78,048.70 is: 107,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,710.92 : 195,569.93 = 78,048.70 : x
  2. Step 2: Convert to fraction form
    141,710.92/195,569.93 = 78,048.70/x
  3. Step 3: Cross multiply
    141,710.92x = 195,569.93 × 78,048.70
  4. Step 4: Simplify right side
    141,710.92x = 15,263,978,795.59
  5. Step 5: Solve for x
    x = 15,263,978,795.59/141,710.92
  6. Step 6: Final answer
    x = 107,712.09

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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.