Home / 156,828.96-216,424.20-85,208.96

Finding the Fourth Proportional to 156,828.96, 216,424.20 and 85,208.96

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Solution

The fourth proportional to 156,828.96, 216,424.20 and 85,208.96 is: 117,588.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,828.96 : 216,424.20 = 85,208.96 : x
  2. Step 2: Convert to fraction form
    156,828.96/216,424.20 = 85,208.96/x
  3. Step 3: Cross multiply
    156,828.96x = 216,424.20 × 85,208.96
  4. Step 4: Simplify right side
    156,828.96x = 18,441,279,918.71
  5. Step 5: Solve for x
    x = 18,441,279,918.71/156,828.96
  6. Step 6: Final answer
    x = 117,588.49

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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.