Home / 137,303.22-189,469.46-76,873.30

Finding the Fourth Proportional to 137,303.22, 189,469.46 and 76,873.30

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Solution

The fourth proportional to 137,303.22, 189,469.46 and 76,873.30 is: 106,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,303.22 : 189,469.46 = 76,873.30 : x
  2. Step 2: Convert to fraction form
    137,303.22/189,469.46 = 76,873.30/x
  3. Step 3: Cross multiply
    137,303.22x = 189,469.46 × 76,873.30
  4. Step 4: Simplify right side
    137,303.22x = 14,565,142,639.42
  5. Step 5: Solve for x
    x = 14,565,142,639.42/137,303.22
  6. Step 6: Final answer
    x = 106,080.12

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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.