Home / 117,126.81-161,634.23-63,411.71

Finding the Fourth Proportional to 117,126.81, 161,634.23 and 63,411.71

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Solution

The fourth proportional to 117,126.81, 161,634.23 and 63,411.71 is: 87,507.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,126.81 : 161,634.23 = 63,411.71 : x
  2. Step 2: Convert to fraction form
    117,126.81/161,634.23 = 63,411.71/x
  3. Step 3: Cross multiply
    117,126.81x = 161,634.23 × 63,411.71
  4. Step 4: Simplify right side
    117,126.81x = 10,249,503,297.28
  5. Step 5: Solve for x
    x = 10,249,503,297.28/117,126.81
  6. Step 6: Final answer
    x = 87,507.75

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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.