Home / 126,421.53-189,639.59-47,536.44

Finding the Fourth Proportional to 126,421.53, 189,639.59 and 47,536.44

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Solution

The fourth proportional to 126,421.53, 189,639.59 and 47,536.44 is: 71,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,421.53 : 189,639.59 = 47,536.44 : x
  2. Step 2: Convert to fraction form
    126,421.53/189,639.59 = 47,536.44/x
  3. Step 3: Cross multiply
    126,421.53x = 189,639.59 × 47,536.44
  4. Step 4: Simplify right side
    126,421.53x = 9,014,790,753.98
  5. Step 5: Solve for x
    x = 9,014,790,753.98/126,421.53
  6. Step 6: Final answer
    x = 71,307.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.