Home / 142,094.54-196,090.47-78,432.35

Finding the Fourth Proportional to 142,094.54, 196,090.47 and 78,432.35

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Solution

The fourth proportional to 142,094.54, 196,090.47 and 78,432.35 is: 108,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,094.54 : 196,090.47 = 78,432.35 : x
  2. Step 2: Convert to fraction form
    142,094.54/196,090.47 = 78,432.35/x
  3. Step 3: Cross multiply
    142,094.54x = 196,090.47 × 78,432.35
  4. Step 4: Simplify right side
    142,094.54x = 15,379,835,394.25
  5. Step 5: Solve for x
    x = 15,379,835,394.25/142,094.54
  6. Step 6: Final answer
    x = 108,236.64

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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.