Home / 125,990.45-173,836.99-71,530.81

Finding the Fourth Proportional to 125,990.45, 173,836.99 and 71,530.81

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Solution

The fourth proportional to 125,990.45, 173,836.99 and 71,530.81 is: 98,695.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,990.45 : 173,836.99 = 71,530.81 : x
  2. Step 2: Convert to fraction form
    125,990.45/173,836.99 = 71,530.81/x
  3. Step 3: Cross multiply
    125,990.45x = 173,836.99 × 71,530.81
  4. Step 4: Simplify right side
    125,990.45x = 12,434,701,536.50
  5. Step 5: Solve for x
    x = 12,434,701,536.50/125,990.45
  6. Step 6: Final answer
    x = 98,695.58

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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.