Home / 140,775.21-194,269.86-77,113.26

Finding the Fourth Proportional to 140,775.21, 194,269.86 and 77,113.26

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Solution

The fourth proportional to 140,775.21, 194,269.86 and 77,113.26 is: 106,416.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,775.21 : 194,269.86 = 77,113.26 : x
  2. Step 2: Convert to fraction form
    140,775.21/194,269.86 = 77,113.26/x
  3. Step 3: Cross multiply
    140,775.21x = 194,269.86 × 77,113.26
  4. Step 4: Simplify right side
    140,775.21x = 14,980,782,224.34
  5. Step 5: Solve for x
    x = 14,980,782,224.34/140,775.21
  6. Step 6: Final answer
    x = 106,416.34

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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.