Home / 140,133.48-193,388.28-76,475.37

Finding the Fourth Proportional to 140,133.48, 193,388.28 and 76,475.37

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Solution

The fourth proportional to 140,133.48, 193,388.28 and 76,475.37 is: 105,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,133.48 : 193,388.28 = 76,475.37 : x
  2. Step 2: Convert to fraction form
    140,133.48/193,388.28 = 76,475.37/x
  3. Step 3: Cross multiply
    140,133.48x = 193,388.28 × 76,475.37
  4. Step 4: Simplify right side
    140,133.48x = 14,789,440,266.66
  5. Step 5: Solve for x
    x = 14,789,440,266.66/140,133.48
  6. Step 6: Final answer
    x = 105,538.24

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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.