Home / 130,759.02-180,242.73-85,414.32

Finding the Fourth Proportional to 130,759.02, 180,242.73 and 85,414.32

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Solution

The fourth proportional to 130,759.02, 180,242.73 and 85,414.32 is: 117,738.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,759.02 : 180,242.73 = 85,414.32 : x
  2. Step 2: Convert to fraction form
    130,759.02/180,242.73 = 85,414.32/x
  3. Step 3: Cross multiply
    130,759.02x = 180,242.73 × 85,414.32
  4. Step 4: Simplify right side
    130,759.02x = 15,395,310,217.89
  5. Step 5: Solve for x
    x = 15,395,310,217.89/130,759.02
  6. Step 6: Final answer
    x = 117,738.04

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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.