Home / 104,380.12-156,598.44-74,432.20

Finding the Fourth Proportional to 104,380.12, 156,598.44 and 74,432.20

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Solution

The fourth proportional to 104,380.12, 156,598.44 and 74,432.20 is: 111,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,380.12 : 156,598.44 = 74,432.20 : x
  2. Step 2: Convert to fraction form
    104,380.12/156,598.44 = 74,432.20/x
  3. Step 3: Cross multiply
    104,380.12x = 156,598.44 × 74,432.20
  4. Step 4: Simplify right side
    104,380.12x = 11,655,966,405.77
  5. Step 5: Solve for x
    x = 11,655,966,405.77/104,380.12
  6. Step 6: Final answer
    x = 111,668.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.