Home / 189,169.65-261,056.13-104,289.75

Finding the Fourth Proportional to 189,169.65, 261,056.13 and 104,289.75

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Solution

The fourth proportional to 189,169.65, 261,056.13 and 104,289.75 is: 143,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,169.65 : 261,056.13 = 104,289.75 : x
  2. Step 2: Convert to fraction form
    189,169.65/261,056.13 = 104,289.75/x
  3. Step 3: Cross multiply
    189,169.65x = 261,056.13 × 104,289.75
  4. Step 4: Simplify right side
    189,169.65x = 27,225,478,533.67
  5. Step 5: Solve for x
    x = 27,225,478,533.67/189,169.65
  6. Step 6: Final answer
    x = 143,920.96

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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.