Home / 130,750.20-180,330.30-83,015.28

Finding the Fourth Proportional to 130,750.20, 180,330.30 and 83,015.28

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Solution

The fourth proportional to 130,750.20, 180,330.30 and 83,015.28 is: 114,494.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,750.20 : 180,330.30 = 83,015.28 : x
  2. Step 2: Convert to fraction form
    130,750.20/180,330.30 = 83,015.28/x
  3. Step 3: Cross multiply
    130,750.20x = 180,330.30 × 83,015.28
  4. Step 4: Simplify right side
    130,750.20x = 14,970,170,346.98
  5. Step 5: Solve for x
    x = 14,970,170,346.98/130,750.20
  6. Step 6: Final answer
    x = 114,494.44

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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.