Home / 189,941.20-262,121.16-105,056.08

Finding the Fourth Proportional to 189,941.20, 262,121.16 and 105,056.08

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Solution

The fourth proportional to 189,941.20, 262,121.16 and 105,056.08 is: 144,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,941.20 : 262,121.16 = 105,056.08 : x
  2. Step 2: Convert to fraction form
    189,941.20/262,121.16 = 105,056.08/x
  3. Step 3: Cross multiply
    189,941.20x = 262,121.16 × 105,056.08
  4. Step 4: Simplify right side
    189,941.20x = 27,537,421,554.65
  5. Step 5: Solve for x
    x = 27,537,421,554.65/189,941.20
  6. Step 6: Final answer
    x = 144,978.66

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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.