Home / 130,858.91-196,288.42-42,112.40

Finding the Fourth Proportional to 130,858.91, 196,288.42 and 42,112.40

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Solution

The fourth proportional to 130,858.91, 196,288.42 and 42,112.40 is: 63,168.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,858.91 : 196,288.42 = 42,112.40 : x
  2. Step 2: Convert to fraction form
    130,858.91/196,288.42 = 42,112.40/x
  3. Step 3: Cross multiply
    130,858.91x = 196,288.42 × 42,112.40
  4. Step 4: Simplify right side
    130,858.91x = 8,266,176,458.41
  5. Step 5: Solve for x
    x = 8,266,176,458.41/130,858.91
  6. Step 6: Final answer
    x = 63,168.62

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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.