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Finding the Fourth Proportional to 124,410, 171,708.30 and 73,419.60

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Solution

The fourth proportional to 124,410, 171,708.30 and 73,419.60 is: 101,332.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,410 : 171,708.30 = 73,419.60 : x
  2. Step 2: Convert to fraction form
    124,410/171,708.30 = 73,419.60/x
  3. Step 3: Cross multiply
    124,410x = 171,708.30 × 73,419.60
  4. Step 4: Simplify right side
    124,410x = 12,606,754,702.68
  5. Step 5: Solve for x
    x = 12,606,754,702.68/124,410
  6. Step 6: Final answer
    x = 101,332.33

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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.