Home / 121,445.04-180,960.27-108,195.60

Finding the Fourth Proportional to 121,445.04, 180,960.27 and 108,195.60

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Solution

The fourth proportional to 121,445.04, 180,960.27 and 108,195.60 is: 161,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,445.04 : 180,960.27 = 108,195.60 : x
  2. Step 2: Convert to fraction form
    121,445.04/180,960.27 = 108,195.60/x
  3. Step 3: Cross multiply
    121,445.04x = 180,960.27 × 108,195.60
  4. Step 4: Simplify right side
    121,445.04x = 19,579,104,988.81
  5. Step 5: Solve for x
    x = 19,579,104,988.81/121,445.04
  6. Step 6: Final answer
    x = 161,217.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.