Home / 102,089.16-140,884.11-56,764.80

Finding the Fourth Proportional to 102,089.16, 140,884.11 and 56,764.80

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Solution

The fourth proportional to 102,089.16, 140,884.11 and 56,764.80 is: 78,336.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,089.16 : 140,884.11 = 56,764.80 : x
  2. Step 2: Convert to fraction form
    102,089.16/140,884.11 = 56,764.80/x
  3. Step 3: Cross multiply
    102,089.16x = 140,884.11 × 56,764.80
  4. Step 4: Simplify right side
    102,089.16x = 7,997,258,327.33
  5. Step 5: Solve for x
    x = 7,997,258,327.33/102,089.16
  6. Step 6: Final answer
    x = 78,336.02

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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.