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Finding the Fourth Proportional to 130,420.44, 179,977.50 and 70,804.44

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Solution

The fourth proportional to 130,420.44, 179,977.50 and 70,804.44 is: 97,708.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,420.44 : 179,977.50 = 70,804.44 : x
  2. Step 2: Convert to fraction form
    130,420.44/179,977.50 = 70,804.44/x
  3. Step 3: Cross multiply
    130,420.44x = 179,977.50 × 70,804.44
  4. Step 4: Simplify right side
    130,420.44x = 12,743,206,100.10
  5. Step 5: Solve for x
    x = 12,743,206,100.10/130,420.44
  6. Step 6: Final answer
    x = 97,708.66

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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.