Home / 116,671.60-161,018.85-71,379.70

Finding the Fourth Proportional to 116,671.60, 161,018.85 and 71,379.70

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Solution

The fourth proportional to 116,671.60, 161,018.85 and 71,379.70 is: 98,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,671.60 : 161,018.85 = 71,379.70 : x
  2. Step 2: Convert to fraction form
    116,671.60/161,018.85 = 71,379.70/x
  3. Step 3: Cross multiply
    116,671.60x = 161,018.85 × 71,379.70
  4. Step 4: Simplify right side
    116,671.60x = 11,493,477,072.47
  5. Step 5: Solve for x
    x = 11,493,477,072.47/116,671.60
  6. Step 6: Final answer
    x = 98,511.35

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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.