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Finding the Fourth Proportional to 116,001.72, 160,023.42 and 72,358.20

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Solution

The fourth proportional to 116,001.72, 160,023.42 and 72,358.20 is: 99,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,001.72 : 160,023.42 = 72,358.20 : x
  2. Step 2: Convert to fraction form
    116,001.72/160,023.42 = 72,358.20/x
  3. Step 3: Cross multiply
    116,001.72x = 160,023.42 × 72,358.20
  4. Step 4: Simplify right side
    116,001.72x = 11,579,006,629.04
  5. Step 5: Solve for x
    x = 11,579,006,629.04/116,001.72
  6. Step 6: Final answer
    x = 99,817.54

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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.