Home / 140,090.88-193,323.60-76,427.28

Finding the Fourth Proportional to 140,090.88, 193,323.60 and 76,427.28

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Solution

The fourth proportional to 140,090.88, 193,323.60 and 76,427.28 is: 105,468.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,090.88 : 193,323.60 = 76,427.28 : x
  2. Step 2: Convert to fraction form
    140,090.88/193,323.60 = 76,427.28/x
  3. Step 3: Cross multiply
    140,090.88x = 193,323.60 × 76,427.28
  4. Step 4: Simplify right side
    140,090.88x = 14,775,196,907.81
  5. Step 5: Solve for x
    x = 14,775,196,907.81/140,090.88
  6. Step 6: Final answer
    x = 105,468.66

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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.