Home / 136,212.75-187,973.69-79,624.53

Finding the Fourth Proportional to 136,212.75, 187,973.69 and 79,624.53

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Solution

The fourth proportional to 136,212.75, 187,973.69 and 79,624.53 is: 109,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,212.75 : 187,973.69 = 79,624.53 : x
  2. Step 2: Convert to fraction form
    136,212.75/187,973.69 = 79,624.53/x
  3. Step 3: Cross multiply
    136,212.75x = 187,973.69 × 79,624.53
  4. Step 4: Simplify right side
    136,212.75x = 14,967,316,320.49
  5. Step 5: Solve for x
    x = 14,967,316,320.49/136,212.75
  6. Step 6: Final answer
    x = 109,881.90

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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.