Home / 117,943.20-162,761.76-64,228.32

Finding the Fourth Proportional to 117,943.20, 162,761.76 and 64,228.32

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Solution

The fourth proportional to 117,943.20, 162,761.76 and 64,228.32 is: 88,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,943.20 : 162,761.76 = 64,228.32 : x
  2. Step 2: Convert to fraction form
    117,943.20/162,761.76 = 64,228.32/x
  3. Step 3: Cross multiply
    117,943.20x = 162,761.76 × 64,228.32
  4. Step 4: Simplify right side
    117,943.20x = 10,453,914,405.04
  5. Step 5: Solve for x
    x = 10,453,914,405.04/117,943.20
  6. Step 6: Final answer
    x = 88,635.16

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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.