Home / 137,083.26-189,196.80-80,483.70

Finding the Fourth Proportional to 137,083.26, 189,196.80 and 80,483.70

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Solution

The fourth proportional to 137,083.26, 189,196.80 and 80,483.70 is: 111,080.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,083.26 : 189,196.80 = 80,483.70 : x
  2. Step 2: Convert to fraction form
    137,083.26/189,196.80 = 80,483.70/x
  3. Step 3: Cross multiply
    137,083.26x = 189,196.80 × 80,483.70
  4. Step 4: Simplify right side
    137,083.26x = 15,227,258,492.16
  5. Step 5: Solve for x
    x = 15,227,258,492.16/137,083.26
  6. Step 6: Final answer
    x = 111,080.36

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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.