Home / 117,698.03-162,422.61-66,720.38

Finding the Fourth Proportional to 117,698.03, 162,422.61 and 66,720.38

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Solution

The fourth proportional to 117,698.03, 162,422.61 and 66,720.38 is: 92,073.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,698.03 : 162,422.61 = 66,720.38 : x
  2. Step 2: Convert to fraction form
    117,698.03/162,422.61 = 66,720.38/x
  3. Step 3: Cross multiply
    117,698.03x = 162,422.61 × 66,720.38
  4. Step 4: Simplify right side
    117,698.03x = 10,836,898,298.76
  5. Step 5: Solve for x
    x = 10,836,898,298.76/117,698.03
  6. Step 6: Final answer
    x = 92,073.74

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1.5x scale

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.