Home / 135,999.16-187,600.61-84,923.21

Finding the Fourth Proportional to 135,999.16, 187,600.61 and 84,923.21

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Solution

The fourth proportional to 135,999.16, 187,600.61 and 84,923.21 is: 117,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,999.16 : 187,600.61 = 84,923.21 : x
  2. Step 2: Convert to fraction form
    135,999.16/187,600.61 = 84,923.21/x
  3. Step 3: Cross multiply
    135,999.16x = 187,600.61 × 84,923.21
  4. Step 4: Simplify right side
    135,999.16x = 15,931,646,680.47
  5. Step 5: Solve for x
    x = 15,931,646,680.47/135,999.16
  6. Step 6: Final answer
    x = 117,145.19

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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.