Home / 142,004.16-195,966.41-78,341.94

Finding the Fourth Proportional to 142,004.16, 195,966.41 and 78,341.94

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Solution

The fourth proportional to 142,004.16, 195,966.41 and 78,341.94 is: 108,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,004.16 : 195,966.41 = 78,341.94 : x
  2. Step 2: Convert to fraction form
    142,004.16/195,966.41 = 78,341.94/x
  3. Step 3: Cross multiply
    142,004.16x = 195,966.41 × 78,341.94
  4. Step 4: Simplify right side
    142,004.16x = 15,352,388,342.53
  5. Step 5: Solve for x
    x = 15,352,388,342.53/142,004.16
  6. Step 6: Final answer
    x = 108,112.24

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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.