Home / 135,947.34-187,608.59-79,347.66

Finding the Fourth Proportional to 135,947.34, 187,608.59 and 79,347.66

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Solution

The fourth proportional to 135,947.34, 187,608.59 and 79,347.66 is: 109,500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,947.34 : 187,608.59 = 79,347.66 : x
  2. Step 2: Convert to fraction form
    135,947.34/187,608.59 = 79,347.66/x
  3. Step 3: Cross multiply
    135,947.34x = 187,608.59 × 79,347.66
  4. Step 4: Simplify right side
    135,947.34x = 14,886,302,612.40
  5. Step 5: Solve for x
    x = 14,886,302,612.40/135,947.34
  6. Step 6: Final answer
    x = 109,500.51

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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.