Home / 125,735.64-173,519.74-72,031.03

Finding the Fourth Proportional to 125,735.64, 173,519.74 and 72,031.03

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Solution

The fourth proportional to 125,735.64, 173,519.74 and 72,031.03 is: 99,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,735.64 : 173,519.74 = 72,031.03 : x
  2. Step 2: Convert to fraction form
    125,735.64/173,519.74 = 72,031.03/x
  3. Step 3: Cross multiply
    125,735.64x = 173,519.74 × 72,031.03
  4. Step 4: Simplify right side
    125,735.64x = 12,498,805,597.53
  5. Step 5: Solve for x
    x = 12,498,805,597.53/125,735.64
  6. Step 6: Final answer
    x = 99,405.43

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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.