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Finding the Fourth Proportional to 125,448.83, 173,040.64 and 74,425.42

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Solution

The fourth proportional to 125,448.83, 173,040.64 and 74,425.42 is: 102,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,448.83 : 173,040.64 = 74,425.42 : x
  2. Step 2: Convert to fraction form
    125,448.83/173,040.64 = 74,425.42/x
  3. Step 3: Cross multiply
    125,448.83x = 173,040.64 × 74,425.42
  4. Step 4: Simplify right side
    125,448.83x = 12,878,621,690.40
  5. Step 5: Solve for x
    x = 12,878,621,690.40/125,448.83
  6. Step 6: Final answer
    x = 102,660.36

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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.