Home / 156,440.26-215,885.55-84,820.06

Finding the Fourth Proportional to 156,440.26, 215,885.55 and 84,820.06

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Solution

The fourth proportional to 156,440.26, 215,885.55 and 84,820.06 is: 117,050.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,440.26 : 215,885.55 = 84,820.06 : x
  2. Step 2: Convert to fraction form
    156,440.26/215,885.55 = 84,820.06/x
  3. Step 3: Cross multiply
    156,440.26x = 215,885.55 × 84,820.06
  4. Step 4: Simplify right side
    156,440.26x = 18,311,425,304.13
  5. Step 5: Solve for x
    x = 18,311,425,304.13/156,440.26
  6. Step 6: Final answer
    x = 117,050.59

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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.