Home / 156,953.05-216,590.75-85,331.41

Finding the Fourth Proportional to 156,953.05, 216,590.75 and 85,331.41

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Solution

The fourth proportional to 156,953.05, 216,590.75 and 85,331.41 is: 117,754.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,953.05 : 216,590.75 = 85,331.41 : x
  2. Step 2: Convert to fraction form
    156,953.05/216,590.75 = 85,331.41/x
  3. Step 3: Cross multiply
    156,953.05x = 216,590.75 × 85,331.41
  4. Step 4: Simplify right side
    156,953.05x = 18,481,994,090.46
  5. Step 5: Solve for x
    x = 18,481,994,090.46/156,953.05
  6. Step 6: Final answer
    x = 117,754.92

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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.