Home / 100,873.29-139,075.02-82,656.27

Finding the Fourth Proportional to 100,873.29, 139,075.02 and 82,656.27

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Solution

The fourth proportional to 100,873.29, 139,075.02 and 82,656.27 is: 113,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,873.29 : 139,075.02 = 82,656.27 : x
  2. Step 2: Convert to fraction form
    100,873.29/139,075.02 = 82,656.27/x
  3. Step 3: Cross multiply
    100,873.29x = 139,075.02 × 82,656.27
  4. Step 4: Simplify right side
    100,873.29x = 11,495,422,403.38
  5. Step 5: Solve for x
    x = 11,495,422,403.38/100,873.29
  6. Step 6: Final answer
    x = 113,959.03

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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.