Home / 189,871.20-262,029.06-113,423.40

Finding the Fourth Proportional to 189,871.20, 262,029.06 and 113,423.40

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Solution

The fourth proportional to 189,871.20, 262,029.06 and 113,423.40 is: 156,528.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,871.20 : 262,029.06 = 113,423.40 : x
  2. Step 2: Convert to fraction form
    189,871.20/262,029.06 = 113,423.40/x
  3. Step 3: Cross multiply
    189,871.20x = 262,029.06 × 113,423.40
  4. Step 4: Simplify right side
    189,871.20x = 29,720,226,884.00
  5. Step 5: Solve for x
    x = 29,720,226,884.00/189,871.20
  6. Step 6: Final answer
    x = 156,528.36

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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.