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Finding the Fourth Proportional to 124,599.06, 171,918.45 and 120,330.90

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Solution

The fourth proportional to 124,599.06, 171,918.45 and 120,330.90 is: 166,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,599.06 : 171,918.45 = 120,330.90 : x
  2. Step 2: Convert to fraction form
    124,599.06/171,918.45 = 120,330.90/x
  3. Step 3: Cross multiply
    124,599.06x = 171,918.45 × 120,330.90
  4. Step 4: Simplify right side
    124,599.06x = 20,687,101,815.11
  5. Step 5: Solve for x
    x = 20,687,101,815.11/124,599.06
  6. Step 6: Final answer
    x = 166,029.36

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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.