Home / 126,878.64-190,334.36-42,602.60

Finding the Fourth Proportional to 126,878.64, 190,334.36 and 42,602.60

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Solution

The fourth proportional to 126,878.64, 190,334.36 and 42,602.60 is: 63,909.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,878.64 : 190,334.36 = 42,602.60 : x
  2. Step 2: Convert to fraction form
    126,878.64/190,334.36 = 42,602.60/x
  3. Step 3: Cross multiply
    126,878.64x = 190,334.36 × 42,602.60
  4. Step 4: Simplify right side
    126,878.64x = 8,108,738,605.34
  5. Step 5: Solve for x
    x = 8,108,738,605.34/126,878.64
  6. Step 6: Final answer
    x = 63,909.41

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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.