Home / 121,452.08-180,970.72-108,202.64

Finding the Fourth Proportional to 121,452.08, 180,970.72 and 108,202.64

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Solution

The fourth proportional to 121,452.08, 180,970.72 and 108,202.64 is: 161,228.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,452.08 : 180,970.72 = 108,202.64 : x
  2. Step 2: Convert to fraction form
    121,452.08/180,970.72 = 108,202.64/x
  3. Step 3: Cross multiply
    121,452.08x = 180,970.72 × 108,202.64
  4. Step 4: Simplify right side
    121,452.08x = 19,581,509,666.70
  5. Step 5: Solve for x
    x = 19,581,509,666.70/121,452.08
  6. Step 6: Final answer
    x = 161,228.28

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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.