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Finding the Fourth Proportional to 115,477.79, 159,324.53 and 67,070.39

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Solution

The fourth proportional to 115,477.79, 159,324.53 and 67,070.39 is: 92,536.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,477.79 : 159,324.53 = 67,070.39 : x
  2. Step 2: Convert to fraction form
    115,477.79/159,324.53 = 67,070.39/x
  3. Step 3: Cross multiply
    115,477.79x = 159,324.53 × 67,070.39
  4. Step 4: Simplify right side
    115,477.79x = 10,685,957,231.69
  5. Step 5: Solve for x
    x = 10,685,957,231.69/115,477.79
  6. Step 6: Final answer
    x = 92,536.90

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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.