Home / 156,388.56-215,816.52-84,768.36

Finding the Fourth Proportional to 156,388.56, 215,816.52 and 84,768.36

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Solution

The fourth proportional to 156,388.56, 215,816.52 and 84,768.36 is: 116,980.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,388.56 : 215,816.52 = 84,768.36 : x
  2. Step 2: Convert to fraction form
    156,388.56/215,816.52 = 84,768.36/x
  3. Step 3: Cross multiply
    156,388.56x = 215,816.52 × 84,768.36
  4. Step 4: Simplify right side
    156,388.56x = 18,294,412,461.31
  5. Step 5: Solve for x
    x = 18,294,412,461.31/156,388.56
  6. Step 6: Final answer
    x = 116,980.50

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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.