Home / 189,941.66-262,132.53-109,390.40

Finding the Fourth Proportional to 189,941.66, 262,132.53 and 109,390.40

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Solution

The fourth proportional to 189,941.66, 262,132.53 and 109,390.40 is: 150,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,941.66 : 262,132.53 = 109,390.40 : x
  2. Step 2: Convert to fraction form
    189,941.66/262,132.53 = 109,390.40/x
  3. Step 3: Cross multiply
    189,941.66x = 262,132.53 × 109,390.40
  4. Step 4: Simplify right side
    189,941.66x = 28,674,782,309.71
  5. Step 5: Solve for x
    x = 28,674,782,309.71/189,941.66
  6. Step 6: Final answer
    x = 150,966.26

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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.