Home / 189,874.28-262,140.20-118,351.18

Finding the Fourth Proportional to 189,874.28, 262,140.20 and 118,351.18

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Solution

The fourth proportional to 189,874.28, 262,140.20 and 118,351.18 is: 163,395.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,874.28 : 262,140.20 = 118,351.18 : x
  2. Step 2: Convert to fraction form
    189,874.28/262,140.20 = 118,351.18/x
  3. Step 3: Cross multiply
    189,874.28x = 262,140.20 × 118,351.18
  4. Step 4: Simplify right side
    189,874.28x = 31,024,600,700.63
  5. Step 5: Solve for x
    x = 31,024,600,700.63/189,874.28
  6. Step 6: Final answer
    x = 163,395.49

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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.