Home / 118,922.36-164,111.58-65,207.21

Finding the Fourth Proportional to 118,922.36, 164,111.58 and 65,207.21

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Solution

The fourth proportional to 118,922.36, 164,111.58 and 65,207.21 is: 89,985.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,922.36 : 164,111.58 = 65,207.21 : x
  2. Step 2: Convert to fraction form
    118,922.36/164,111.58 = 65,207.21/x
  3. Step 3: Cross multiply
    118,922.36x = 164,111.58 × 65,207.21
  4. Step 4: Simplify right side
    118,922.36x = 10,701,257,439.93
  5. Step 5: Solve for x
    x = 10,701,257,439.93/118,922.36
  6. Step 6: Final answer
    x = 89,985.25

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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.