Home / 138,097.24-190,551.89-77,664.29

Finding the Fourth Proportional to 138,097.24, 190,551.89 and 77,664.29

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Solution

The fourth proportional to 138,097.24, 190,551.89 and 77,664.29 is: 107,164.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,097.24 : 190,551.89 = 77,664.29 : x
  2. Step 2: Convert to fraction form
    138,097.24/190,551.89 = 77,664.29/x
  3. Step 3: Cross multiply
    138,097.24x = 190,551.89 × 77,664.29
  4. Step 4: Simplify right side
    138,097.24x = 14,799,076,486.41
  5. Step 5: Solve for x
    x = 14,799,076,486.41/138,097.24
  6. Step 6: Final answer
    x = 107,164.17

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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.