Home / 138,217.41-190,798.88-92,921.66

Finding the Fourth Proportional to 138,217.41, 190,798.88 and 92,921.66

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Solution

The fourth proportional to 138,217.41, 190,798.88 and 92,921.66 is: 128,271.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,217.41 : 190,798.88 = 92,921.66 : x
  2. Step 2: Convert to fraction form
    138,217.41/190,798.88 = 92,921.66/x
  3. Step 3: Cross multiply
    138,217.41x = 190,798.88 × 92,921.66
  4. Step 4: Simplify right side
    138,217.41x = 17,729,349,722.79
  5. Step 5: Solve for x
    x = 17,729,349,722.79/138,217.41
  6. Step 6: Final answer
    x = 128,271.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.