Home / 126,373.02-189,464.68-76,442.86

Finding the Fourth Proportional to 126,373.02, 189,464.68 and 76,442.86

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Solution

The fourth proportional to 126,373.02, 189,464.68 and 76,442.86 is: 114,606.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,373.02 : 189,464.68 = 76,442.86 : x
  2. Step 2: Convert to fraction form
    126,373.02/189,464.68 = 76,442.86/x
  3. Step 3: Cross multiply
    126,373.02x = 189,464.68 × 76,442.86
  4. Step 4: Simplify right side
    126,373.02x = 14,483,222,008.18
  5. Step 5: Solve for x
    x = 14,483,222,008.18/126,373.02
  6. Step 6: Final answer
    x = 114,606.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.