Home / 102,008.22-140,762.40-56,683.33

Finding the Fourth Proportional to 102,008.22, 140,762.40 and 56,683.33

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Solution

The fourth proportional to 102,008.22, 140,762.40 and 56,683.33 is: 78,218.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,008.22 : 140,762.40 = 56,683.33 : x
  2. Step 2: Convert to fraction form
    102,008.22/140,762.40 = 56,683.33/x
  3. Step 3: Cross multiply
    102,008.22x = 140,762.40 × 56,683.33
  4. Step 4: Simplify right side
    102,008.22x = 7,978,881,570.79
  5. Step 5: Solve for x
    x = 7,978,881,570.79/102,008.22
  6. Step 6: Final answer
    x = 78,218.03

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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.