Home / 127,141.38-190,739.40-42,903.62

Finding the Fourth Proportional to 127,141.38, 190,739.40 and 42,903.62

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Solution

The fourth proportional to 127,141.38, 190,739.40 and 42,903.62 is: 64,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,141.38 : 190,739.40 = 42,903.62 : x
  2. Step 2: Convert to fraction form
    127,141.38/190,739.40 = 42,903.62/x
  3. Step 3: Cross multiply
    127,141.38x = 190,739.40 × 42,903.62
  4. Step 4: Simplify right side
    127,141.38x = 8,183,410,736.63
  5. Step 5: Solve for x
    x = 8,183,410,736.63/127,141.38
  6. Step 6: Final answer
    x = 64,364.65

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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.