Home / 126,014.60-189,021.90-42,908.60

Finding the Fourth Proportional to 126,014.60, 189,021.90 and 42,908.60

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Solution

The fourth proportional to 126,014.60, 189,021.90 and 42,908.60 is: 64,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,014.60 : 189,021.90 = 42,908.60 : x
  2. Step 2: Convert to fraction form
    126,014.60/189,021.90 = 42,908.60/x
  3. Step 3: Cross multiply
    126,014.60x = 189,021.90 × 42,908.60
  4. Step 4: Simplify right side
    126,014.60x = 8,110,665,098.34
  5. Step 5: Solve for x
    x = 8,110,665,098.34/126,014.60
  6. Step 6: Final answer
    x = 64,362.90

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1.5x scale

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.