Home / 156,117.28-215,441.40-84,497.28

Finding the Fourth Proportional to 156,117.28, 215,441.40 and 84,497.28

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Solution

The fourth proportional to 156,117.28, 215,441.40 and 84,497.28 is: 116,606.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,117.28 : 215,441.40 = 84,497.28 : x
  2. Step 2: Convert to fraction form
    156,117.28/215,441.40 = 84,497.28/x
  3. Step 3: Cross multiply
    156,117.28x = 215,441.40 × 84,497.28
  4. Step 4: Simplify right side
    156,117.28x = 18,204,212,299.39
  5. Step 5: Solve for x
    x = 18,204,212,299.39/156,117.28
  6. Step 6: Final answer
    x = 116,606.00

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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.