Home / 150,955.79-208,287.20-83,886.35

Finding the Fourth Proportional to 150,955.79, 208,287.20 and 83,886.35

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Solution

The fourth proportional to 150,955.79, 208,287.20 and 83,886.35 is: 115,745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,955.79 : 208,287.20 = 83,886.35 : x
  2. Step 2: Convert to fraction form
    150,955.79/208,287.20 = 83,886.35/x
  3. Step 3: Cross multiply
    150,955.79x = 208,287.20 × 83,886.35
  4. Step 4: Simplify right side
    150,955.79x = 17,472,452,540.29
  5. Step 5: Solve for x
    x = 17,472,452,540.29/150,955.79
  6. Step 6: Final answer
    x = 115,745.49

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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.