Home / 130,635.44-180,278.04-74,036.24

Finding the Fourth Proportional to 130,635.44, 180,278.04 and 74,036.24

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Solution

The fourth proportional to 130,635.44, 180,278.04 and 74,036.24 is: 102,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,635.44 : 180,278.04 = 74,036.24 : x
  2. Step 2: Convert to fraction form
    130,635.44/180,278.04 = 74,036.24/x
  3. Step 3: Cross multiply
    130,635.44x = 180,278.04 × 74,036.24
  4. Step 4: Simplify right side
    130,635.44x = 13,347,108,236.17
  5. Step 5: Solve for x
    x = 13,347,108,236.17/130,635.44
  6. Step 6: Final answer
    x = 102,170.65

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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.