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Finding the Fourth Proportional to 122,352.76, 168,749.41 and 101,095.12

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Solution

The fourth proportional to 122,352.76, 168,749.41 and 101,095.12 is: 139,430.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,352.76 : 168,749.41 = 101,095.12 : x
  2. Step 2: Convert to fraction form
    122,352.76/168,749.41 = 101,095.12/x
  3. Step 3: Cross multiply
    122,352.76x = 168,749.41 × 101,095.12
  4. Step 4: Simplify right side
    122,352.76x = 17,059,740,504.66
  5. Step 5: Solve for x
    x = 17,059,740,504.66/122,352.76
  6. Step 6: Final answer
    x = 139,430.78

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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.