Home / 127,212.39-190,840.57-42,973.16

Finding the Fourth Proportional to 127,212.39, 190,840.57 and 42,973.16

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Solution

The fourth proportional to 127,212.39, 190,840.57 and 42,973.16 is: 64,467.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,212.39 : 190,840.57 = 42,973.16 : x
  2. Step 2: Convert to fraction form
    127,212.39/190,840.57 = 42,973.16/x
  3. Step 3: Cross multiply
    127,212.39x = 190,840.57 × 42,973.16
  4. Step 4: Simplify right side
    127,212.39x = 8,201,021,287.47
  5. Step 5: Solve for x
    x = 8,201,021,287.47/127,212.39
  6. Step 6: Final answer
    x = 64,467.16

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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.