Home / 126,470.40-190,033.65-112,036.20

Finding the Fourth Proportional to 126,470.40, 190,033.65 and 112,036.20

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Solution

The fourth proportional to 126,470.40, 190,033.65 and 112,036.20 is: 168,344.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,470.40 : 190,033.65 = 112,036.20 : x
  2. Step 2: Convert to fraction form
    126,470.40/190,033.65 = 112,036.20/x
  3. Step 3: Cross multiply
    126,470.40x = 190,033.65 × 112,036.20
  4. Step 4: Simplify right side
    126,470.40x = 21,290,648,018.13
  5. Step 5: Solve for x
    x = 21,290,648,018.13/126,470.40
  6. Step 6: Final answer
    x = 168,344.91

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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.