Home / 156,289.60-215,679.36-84,671.41

Finding the Fourth Proportional to 156,289.60, 215,679.36 and 84,671.41

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Solution

The fourth proportional to 156,289.60, 215,679.36 and 84,671.41 is: 116,846.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,289.60 : 215,679.36 = 84,671.41 : x
  2. Step 2: Convert to fraction form
    156,289.60/215,679.36 = 84,671.41/x
  3. Step 3: Cross multiply
    156,289.60x = 215,679.36 × 84,671.41
  4. Step 4: Simplify right side
    156,289.60x = 18,261,875,519.10
  5. Step 5: Solve for x
    x = 18,261,875,519.10/156,289.60
  6. Step 6: Final answer
    x = 116,846.39

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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.