Home / 127,072.38-190,670.67-89,871.51

Finding the Fourth Proportional to 127,072.38, 190,670.67 and 89,871.51

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Solution

The fourth proportional to 127,072.38, 190,670.67 and 89,871.51 is: 134,851.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,072.38 : 190,670.67 = 89,871.51 : x
  2. Step 2: Convert to fraction form
    127,072.38/190,670.67 = 89,871.51/x
  3. Step 3: Cross multiply
    127,072.38x = 190,670.67 × 89,871.51
  4. Step 4: Simplify right side
    127,072.38x = 17,135,861,025.61
  5. Step 5: Solve for x
    x = 17,135,861,025.61/127,072.38
  6. Step 6: Final answer
    x = 134,851.19

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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.