Home / 113,185.28-156,264.08-74,977.36

Finding the Fourth Proportional to 113,185.28, 156,264.08 and 74,977.36

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Solution

The fourth proportional to 113,185.28, 156,264.08 and 74,977.36 is: 103,514.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,185.28 : 156,264.08 = 74,977.36 : x
  2. Step 2: Convert to fraction form
    113,185.28/156,264.08 = 74,977.36/x
  3. Step 3: Cross multiply
    113,185.28x = 156,264.08 × 74,977.36
  4. Step 4: Simplify right side
    113,185.28x = 11,716,268,181.23
  5. Step 5: Solve for x
    x = 11,716,268,181.23/113,185.28
  6. Step 6: Final answer
    x = 103,514.06

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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.