Home / 136,459.23-188,319.53-76,029.84

Finding the Fourth Proportional to 136,459.23, 188,319.53 and 76,029.84

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Solution

The fourth proportional to 136,459.23, 188,319.53 and 76,029.84 is: 104,924.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,459.23 : 188,319.53 = 76,029.84 : x
  2. Step 2: Convert to fraction form
    136,459.23/188,319.53 = 76,029.84/x
  3. Step 3: Cross multiply
    136,459.23x = 188,319.53 × 76,029.84
  4. Step 4: Simplify right side
    136,459.23x = 14,317,903,924.85
  5. Step 5: Solve for x
    x = 14,317,903,924.85/136,459.23
  6. Step 6: Final answer
    x = 104,924.41

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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.