Home / 126,861.02-190,328.90-38,128.06

Finding the Fourth Proportional to 126,861.02, 190,328.90 and 38,128.06

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Solution

The fourth proportional to 126,861.02, 190,328.90 and 38,128.06 is: 57,203.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,861.02 : 190,328.90 = 38,128.06 : x
  2. Step 2: Convert to fraction form
    126,861.02/190,328.90 = 38,128.06/x
  3. Step 3: Cross multiply
    126,861.02x = 190,328.90 × 38,128.06
  4. Step 4: Simplify right side
    126,861.02x = 7,256,871,718.93
  5. Step 5: Solve for x
    x = 7,256,871,718.93/126,861.02
  6. Step 6: Final answer
    x = 57,203.32

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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.