Home / 116,977.59-161,445.02-71,658.09

Finding the Fourth Proportional to 116,977.59, 161,445.02 and 71,658.09

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Solution

The fourth proportional to 116,977.59, 161,445.02 and 71,658.09 is: 98,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,977.59 : 161,445.02 = 71,658.09 : x
  2. Step 2: Convert to fraction form
    116,977.59/161,445.02 = 71,658.09/x
  3. Step 3: Cross multiply
    116,977.59x = 161,445.02 × 71,658.09
  4. Step 4: Simplify right side
    116,977.59x = 11,568,841,414.92
  5. Step 5: Solve for x
    x = 11,568,841,414.92/116,977.59
  6. Step 6: Final answer
    x = 98,897.93

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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.