Home / 141,989.04-195,947.01-78,325.47

Finding the Fourth Proportional to 141,989.04, 195,947.01 and 78,325.47

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Solution

The fourth proportional to 141,989.04, 195,947.01 and 78,325.47 is: 108,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,989.04 : 195,947.01 = 78,325.47 : x
  2. Step 2: Convert to fraction form
    141,989.04/195,947.01 = 78,325.47/x
  3. Step 3: Cross multiply
    141,989.04x = 195,947.01 × 78,325.47
  4. Step 4: Simplify right side
    141,989.04x = 15,347,641,653.34
  5. Step 5: Solve for x
    x = 15,347,641,653.34/141,989.04
  6. Step 6: Final answer
    x = 108,090.33

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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.