Home / 120,004.07-165,602.48-66,280.41

Finding the Fourth Proportional to 120,004.07, 165,602.48 and 66,280.41

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Solution

The fourth proportional to 120,004.07, 165,602.48 and 66,280.41 is: 91,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,004.07 : 165,602.48 = 66,280.41 : x
  2. Step 2: Convert to fraction form
    120,004.07/165,602.48 = 66,280.41/x
  3. Step 3: Cross multiply
    120,004.07x = 165,602.48 × 66,280.41
  4. Step 4: Simplify right side
    120,004.07x = 10,976,199,940.01
  5. Step 5: Solve for x
    x = 10,976,199,940.01/120,004.07
  6. Step 6: Final answer
    x = 91,465.23

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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.