Home / 156,953.58-216,486.26-103,221.42

Finding the Fourth Proportional to 156,953.58, 216,486.26 and 103,221.42

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Solution

The fourth proportional to 156,953.58, 216,486.26 and 103,221.42 is: 142,373.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,953.58 : 216,486.26 = 103,221.42 : x
  2. Step 2: Convert to fraction form
    156,953.58/216,486.26 = 103,221.42/x
  3. Step 3: Cross multiply
    156,953.58x = 216,486.26 × 103,221.42
  4. Step 4: Simplify right side
    156,953.58x = 22,346,019,167.69
  5. Step 5: Solve for x
    x = 22,346,019,167.69/156,953.58
  6. Step 6: Final answer
    x = 142,373.43

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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.