Home / 156,116.88-215,439.60-84,495.36

Finding the Fourth Proportional to 156,116.88, 215,439.60 and 84,495.36

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Solution

The fourth proportional to 156,116.88, 215,439.60 and 84,495.36 is: 116,602.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,116.88 : 215,439.60 = 84,495.36 : x
  2. Step 2: Convert to fraction form
    156,116.88/215,439.60 = 84,495.36/x
  3. Step 3: Cross multiply
    156,116.88x = 215,439.60 × 84,495.36
  4. Step 4: Simplify right side
    156,116.88x = 18,203,646,560.26
  5. Step 5: Solve for x
    x = 18,203,646,560.26/156,116.88
  6. Step 6: Final answer
    x = 116,602.68

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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.