Home / 126,120.63-173,948-80,802.82

Finding the Fourth Proportional to 126,120.63, 173,948 and 80,802.82

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Solution

The fourth proportional to 126,120.63, 173,948 and 80,802.82 is: 111,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,120.63 : 173,948 = 80,802.82 : x
  2. Step 2: Convert to fraction form
    126,120.63/173,948 = 80,802.82/x
  3. Step 3: Cross multiply
    126,120.63x = 173,948 × 80,802.82
  4. Step 4: Simplify right side
    126,120.63x = 14,055,488,933.36
  5. Step 5: Solve for x
    x = 14,055,488,933.36/126,120.63
  6. Step 6: Final answer
    x = 111,444.80

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1.5x scale

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.