Home / 156,162.40-215,504.02-84,542.36

Finding the Fourth Proportional to 156,162.40, 215,504.02 and 84,542.36

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Solution

The fourth proportional to 156,162.40, 215,504.02 and 84,542.36 is: 116,668.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,162.40 : 215,504.02 = 84,542.36 : x
  2. Step 2: Convert to fraction form
    156,162.40/215,504.02 = 84,542.36/x
  3. Step 3: Cross multiply
    156,162.40x = 215,504.02 × 84,542.36
  4. Step 4: Simplify right side
    156,162.40x = 18,219,218,440.29
  5. Step 5: Solve for x
    x = 18,219,218,440.29/156,162.40
  6. Step 6: Final answer
    x = 116,668.41

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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.