Home / 140,457.21-193,829.63-76,794.33

Finding the Fourth Proportional to 140,457.21, 193,829.63 and 76,794.33

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Solution

The fourth proportional to 140,457.21, 193,829.63 and 76,794.33 is: 105,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,457.21 : 193,829.63 = 76,794.33 : x
  2. Step 2: Convert to fraction form
    140,457.21/193,829.63 = 76,794.33/x
  3. Step 3: Cross multiply
    140,457.21x = 193,829.63 × 76,794.33
  4. Step 4: Simplify right side
    140,457.21x = 14,885,016,186.03
  5. Step 5: Solve for x
    x = 14,885,016,186.03/140,457.21
  6. Step 6: Final answer
    x = 105,975.45

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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.