Home / 126,895.47-190,322.55-47,990.94

Finding the Fourth Proportional to 126,895.47, 190,322.55 and 47,990.94

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Solution

The fourth proportional to 126,895.47, 190,322.55 and 47,990.94 is: 71,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,895.47 : 190,322.55 = 47,990.94 : x
  2. Step 2: Convert to fraction form
    126,895.47/190,322.55 = 47,990.94/x
  3. Step 3: Cross multiply
    126,895.47x = 190,322.55 × 47,990.94
  4. Step 4: Simplify right side
    126,895.47x = 9,133,758,077.70
  5. Step 5: Solve for x
    x = 9,133,758,077.70/126,895.47
  6. Step 6: Final answer
    x = 71,978.60

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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.