Home / 126,870.35-190,305.45-118,462.80

Finding the Fourth Proportional to 126,870.35, 190,305.45 and 118,462.80

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Solution

The fourth proportional to 126,870.35, 190,305.45 and 118,462.80 is: 177,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,870.35 : 190,305.45 = 118,462.80 : x
  2. Step 2: Convert to fraction form
    126,870.35/190,305.45 = 118,462.80/x
  3. Step 3: Cross multiply
    126,870.35x = 190,305.45 × 118,462.80
  4. Step 4: Simplify right side
    126,870.35x = 22,544,114,918.42
  5. Step 5: Solve for x
    x = 22,544,114,918.42/126,870.35
  6. Step 6: Final answer
    x = 177,694.12

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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.