Home / 125,619.96-173,345.40-71,892.72

Finding the Fourth Proportional to 125,619.96, 173,345.40 and 71,892.72

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Solution

The fourth proportional to 125,619.96, 173,345.40 and 71,892.72 is: 99,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,619.96 : 173,345.40 = 71,892.72 : x
  2. Step 2: Convert to fraction form
    125,619.96/173,345.40 = 71,892.72/x
  3. Step 3: Cross multiply
    125,619.96x = 173,345.40 × 71,892.72
  4. Step 4: Simplify right side
    125,619.96x = 12,462,272,305.49
  5. Step 5: Solve for x
    x = 12,462,272,305.49/125,619.96
  6. Step 6: Final answer
    x = 99,206.15

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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.