Home / 117,869.84-162,632.48-66,871.28

Finding the Fourth Proportional to 117,869.84, 162,632.48 and 66,871.28

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Solution

The fourth proportional to 117,869.84, 162,632.48 and 66,871.28 is: 92,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,869.84 : 162,632.48 = 66,871.28 : x
  2. Step 2: Convert to fraction form
    117,869.84/162,632.48 = 66,871.28/x
  3. Step 3: Cross multiply
    117,869.84x = 162,632.48 × 66,871.28
  4. Step 4: Simplify right side
    117,869.84x = 10,875,442,107.17
  5. Step 5: Solve for x
    x = 10,875,442,107.17/117,869.84
  6. Step 6: Final answer
    x = 92,266.54

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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.