Home / 138,058.29-190,444.87-89,015.22

Finding the Fourth Proportional to 138,058.29, 190,444.87 and 89,015.22

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Solution

The fourth proportional to 138,058.29, 190,444.87 and 89,015.22 is: 122,792.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,058.29 : 190,444.87 = 89,015.22 : x
  2. Step 2: Convert to fraction form
    138,058.29/190,444.87 = 89,015.22/x
  3. Step 3: Cross multiply
    138,058.29x = 190,444.87 × 89,015.22
  4. Step 4: Simplify right side
    138,058.29x = 16,952,492,112.19
  5. Step 5: Solve for x
    x = 16,952,492,112.19/138,058.29
  6. Step 6: Final answer
    x = 122,792.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.