Home / 130,858.90-196,288.32-42,119.32

Finding the Fourth Proportional to 130,858.90, 196,288.32 and 42,119.32

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Solution

The fourth proportional to 130,858.90, 196,288.32 and 42,119.32 is: 63,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,858.90 : 196,288.32 = 42,119.32 : x
  2. Step 2: Convert to fraction form
    130,858.90/196,288.32 = 42,119.32/x
  3. Step 3: Cross multiply
    130,858.90x = 196,288.32 × 42,119.32
  4. Step 4: Simplify right side
    130,858.90x = 8,267,530,562.34
  5. Step 5: Solve for x
    x = 8,267,530,562.34/130,858.90
  6. Step 6: Final answer
    x = 63,178.97

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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.