Home / 117,680.10-162,435.69-75,238.80

Finding the Fourth Proportional to 117,680.10, 162,435.69 and 75,238.80

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Solution

The fourth proportional to 117,680.10, 162,435.69 and 75,238.80 is: 103,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,680.10 : 162,435.69 = 75,238.80 : x
  2. Step 2: Convert to fraction form
    117,680.10/162,435.69 = 75,238.80/x
  3. Step 3: Cross multiply
    117,680.10x = 162,435.69 × 75,238.80
  4. Step 4: Simplify right side
    117,680.10x = 12,221,466,392.77
  5. Step 5: Solve for x
    x = 12,221,466,392.77/117,680.10
  6. Step 6: Final answer
    x = 103,853.30

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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.