Home / 127,000.90-190,367.99-42,731.81

Finding the Fourth Proportional to 127,000.90, 190,367.99 and 42,731.81

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Solution

The fourth proportional to 127,000.90, 190,367.99 and 42,731.81 is: 64,052.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,000.90 : 190,367.99 = 42,731.81 : x
  2. Step 2: Convert to fraction form
    127,000.90/190,367.99 = 42,731.81/x
  3. Step 3: Cross multiply
    127,000.90x = 190,367.99 × 42,731.81
  4. Step 4: Simplify right side
    127,000.90x = 8,134,768,487.39
  5. Step 5: Solve for x
    x = 8,134,768,487.39/127,000.90
  6. Step 6: Final answer
    x = 64,052.84

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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.