Home / 126,473.40-190,038.15-112,039.20

Finding the Fourth Proportional to 126,473.40, 190,038.15 and 112,039.20

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Solution

The fourth proportional to 126,473.40, 190,038.15 and 112,039.20 is: 168,349.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,473.40 : 190,038.15 = 112,039.20 : x
  2. Step 2: Convert to fraction form
    126,473.40/190,038.15 = 112,039.20/x
  3. Step 3: Cross multiply
    126,473.40x = 190,038.15 × 112,039.20
  4. Step 4: Simplify right side
    126,473.40x = 21,291,722,295.48
  5. Step 5: Solve for x
    x = 21,291,722,295.48/126,473.40
  6. Step 6: Final answer
    x = 168,349.41

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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.