Home / 136,519.65-188,374.28-76,077.05

Finding the Fourth Proportional to 136,519.65, 188,374.28 and 76,077.05

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Solution

The fourth proportional to 136,519.65, 188,374.28 and 76,077.05 is: 104,973.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,519.65 : 188,374.28 = 76,077.05 : x
  2. Step 2: Convert to fraction form
    136,519.65/188,374.28 = 76,077.05/x
  3. Step 3: Cross multiply
    136,519.65x = 188,374.28 × 76,077.05
  4. Step 4: Simplify right side
    136,519.65x = 14,330,958,196.02
  5. Step 5: Solve for x
    x = 14,330,958,196.02/136,519.65
  6. Step 6: Final answer
    x = 104,973.59

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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.