Home / 126,536.15-174,611.58-72,812.50

Finding the Fourth Proportional to 126,536.15, 174,611.58 and 72,812.50

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Solution

The fourth proportional to 126,536.15, 174,611.58 and 72,812.50 is: 100,476.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,536.15 : 174,611.58 = 72,812.50 : x
  2. Step 2: Convert to fraction form
    126,536.15/174,611.58 = 72,812.50/x
  3. Step 3: Cross multiply
    126,536.15x = 174,611.58 × 72,812.50
  4. Step 4: Simplify right side
    126,536.15x = 12,713,905,668.75
  5. Step 5: Solve for x
    x = 12,713,905,668.75/126,536.15
  6. Step 6: Final answer
    x = 100,476.47

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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.