Home / 127,005.78-190,529.73-42,773.07

Finding the Fourth Proportional to 127,005.78, 190,529.73 and 42,773.07

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Solution

The fourth proportional to 127,005.78, 190,529.73 and 42,773.07 is: 64,166.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,005.78 : 190,529.73 = 42,773.07 : x
  2. Step 2: Convert to fraction form
    127,005.78/190,529.73 = 42,773.07/x
  3. Step 3: Cross multiply
    127,005.78x = 190,529.73 × 42,773.07
  4. Step 4: Simplify right side
    127,005.78x = 8,149,541,478.37
  5. Step 5: Solve for x
    x = 8,149,541,478.37/127,005.78
  6. Step 6: Final answer
    x = 64,166.70

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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.