Home / 118,422.95-177,316.11-90,208.60

Finding the Fourth Proportional to 118,422.95, 177,316.11 and 90,208.60

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Solution

The fourth proportional to 118,422.95, 177,316.11 and 90,208.60 is: 135,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,422.95 : 177,316.11 = 90,208.60 : x
  2. Step 2: Convert to fraction form
    118,422.95/177,316.11 = 90,208.60/x
  3. Step 3: Cross multiply
    118,422.95x = 177,316.11 × 90,208.60
  4. Step 4: Simplify right side
    118,422.95x = 15,995,437,597.26
  5. Step 5: Solve for x
    x = 15,995,437,597.26/118,422.95
  6. Step 6: Final answer
    x = 135,070.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.