Home / 118,121.36-163,006.44-67,820.72

Finding the Fourth Proportional to 118,121.36, 163,006.44 and 67,820.72

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Solution

The fourth proportional to 118,121.36, 163,006.44 and 67,820.72 is: 93,592.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,121.36 : 163,006.44 = 67,820.72 : x
  2. Step 2: Convert to fraction form
    118,121.36/163,006.44 = 67,820.72/x
  3. Step 3: Cross multiply
    118,121.36x = 163,006.44 × 67,820.72
  4. Step 4: Simplify right side
    118,121.36x = 11,055,214,125.44
  5. Step 5: Solve for x
    x = 11,055,214,125.44/118,121.36
  6. Step 6: Final answer
    x = 93,592.00

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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.