Home / 118,968.95-164,120.55-71,213.07

Finding the Fourth Proportional to 118,968.95, 164,120.55 and 71,213.07

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Solution

The fourth proportional to 118,968.95, 164,120.55 and 71,213.07 is: 98,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,968.95 : 164,120.55 = 71,213.07 : x
  2. Step 2: Convert to fraction form
    118,968.95/164,120.55 = 71,213.07/x
  3. Step 3: Cross multiply
    118,968.95x = 164,120.55 × 71,213.07
  4. Step 4: Simplify right side
    118,968.95x = 11,687,528,215.59
  5. Step 5: Solve for x
    x = 11,687,528,215.59/118,968.95
  6. Step 6: Final answer
    x = 98,240.16

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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.