Home / 156,060.81-215,362.38-84,439.26

Finding the Fourth Proportional to 156,060.81, 215,362.38 and 84,439.26

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Solution

The fourth proportional to 156,060.81, 215,362.38 and 84,439.26 is: 116,525.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,060.81 : 215,362.38 = 84,439.26 : x
  2. Step 2: Convert to fraction form
    156,060.81/215,362.38 = 84,439.26/x
  3. Step 3: Cross multiply
    156,060.81x = 215,362.38 × 84,439.26
  4. Step 4: Simplify right side
    156,060.81x = 18,185,039,999.04
  5. Step 5: Solve for x
    x = 18,185,039,999.04/156,060.81
  6. Step 6: Final answer
    x = 116,525.35

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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.