Home / 189,289.31-261,214.67-104,404.55

Finding the Fourth Proportional to 189,289.31, 261,214.67 and 104,404.55

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Solution

The fourth proportional to 189,289.31, 261,214.67 and 104,404.55 is: 144,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,289.31 : 261,214.67 = 104,404.55 : x
  2. Step 2: Convert to fraction form
    189,289.31/261,214.67 = 104,404.55/x
  3. Step 3: Cross multiply
    189,289.31x = 261,214.67 × 104,404.55
  4. Step 4: Simplify right side
    189,289.31x = 27,271,999,029.69
  5. Step 5: Solve for x
    x = 27,271,999,029.69/189,289.31
  6. Step 6: Final answer
    x = 144,075.75

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1.5x scale

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.