Home / 126,715.23-190,115.07-42,483.72

Finding the Fourth Proportional to 126,715.23, 190,115.07 and 42,483.72

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Solution

The fourth proportional to 126,715.23, 190,115.07 and 42,483.72 is: 63,739.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,715.23 : 190,115.07 = 42,483.72 : x
  2. Step 2: Convert to fraction form
    126,715.23/190,115.07 = 42,483.72/x
  3. Step 3: Cross multiply
    126,715.23x = 190,115.07 × 42,483.72
  4. Step 4: Simplify right side
    126,715.23x = 8,076,795,401.66
  5. Step 5: Solve for x
    x = 8,076,795,401.66/126,715.23
  6. Step 6: Final answer
    x = 63,739.74

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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.