Home / 156,364.35-215,782.74-84,744.36

Finding the Fourth Proportional to 156,364.35, 215,782.74 and 84,744.36

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Solution

The fourth proportional to 156,364.35, 215,782.74 and 84,744.36 is: 116,947.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,364.35 : 215,782.74 = 84,744.36 : x
  2. Step 2: Convert to fraction form
    156,364.35/215,782.74 = 84,744.36/x
  3. Step 3: Cross multiply
    156,364.35x = 215,782.74 × 84,744.36
  4. Step 4: Simplify right side
    156,364.35x = 18,286,370,200.35
  5. Step 5: Solve for x
    x = 18,286,370,200.35/156,364.35
  6. Step 6: Final answer
    x = 116,947.18

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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.