Home / 216,008.25-298,146.06-128,887.08

Finding the Fourth Proportional to 216,008.25, 298,146.06 and 128,887.08

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Solution

The fourth proportional to 216,008.25, 298,146.06 and 128,887.08 is: 177,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,008.25 : 298,146.06 = 128,887.08 : x
  2. Step 2: Convert to fraction form
    216,008.25/298,146.06 = 128,887.08/x
  3. Step 3: Cross multiply
    216,008.25x = 298,146.06 × 128,887.08
  4. Step 4: Simplify right side
    216,008.25x = 38,427,175,086.90
  5. Step 5: Solve for x
    x = 38,427,175,086.90/216,008.25
  6. Step 6: Final answer
    x = 177,896.79

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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.