Home / 135,999.72-187,601.42-84,923.76

Finding the Fourth Proportional to 135,999.72, 187,601.42 and 84,923.76

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Solution

The fourth proportional to 135,999.72, 187,601.42 and 84,923.76 is: 117,145.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,999.72 : 187,601.42 = 84,923.76 : x
  2. Step 2: Convert to fraction form
    135,999.72/187,601.42 = 84,923.76/x
  3. Step 3: Cross multiply
    135,999.72x = 187,601.42 × 84,923.76
  4. Step 4: Simplify right side
    135,999.72x = 15,931,817,967.74
  5. Step 5: Solve for x
    x = 15,931,817,967.74/135,999.72
  6. Step 6: Final answer
    x = 117,145.96

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1.5x scale

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.