Home / 125,216.51-172,790.08-74,226.60

Finding the Fourth Proportional to 125,216.51, 172,790.08 and 74,226.60

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Solution

The fourth proportional to 125,216.51, 172,790.08 and 74,226.60 is: 102,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,216.51 : 172,790.08 = 74,226.60 : x
  2. Step 2: Convert to fraction form
    125,216.51/172,790.08 = 74,226.60/x
  3. Step 3: Cross multiply
    125,216.51x = 172,790.08 × 74,226.60
  4. Step 4: Simplify right side
    125,216.51x = 12,825,619,966.56
  5. Step 5: Solve for x
    x = 12,825,619,966.56/125,216.51
  6. Step 6: Final answer
    x = 102,427.55

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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.