Home / 98,131.16-135,424.28-55,118.22

Finding the Fourth Proportional to 98,131.16, 135,424.28 and 55,118.22

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Solution

The fourth proportional to 98,131.16, 135,424.28 and 55,118.22 is: 76,064.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,131.16 : 135,424.28 = 55,118.22 : x
  2. Step 2: Convert to fraction form
    98,131.16/135,424.28 = 55,118.22/x
  3. Step 3: Cross multiply
    98,131.16x = 135,424.28 × 55,118.22
  4. Step 4: Simplify right side
    98,131.16x = 7,464,344,982.79
  5. Step 5: Solve for x
    x = 7,464,344,982.79/98,131.16
  6. Step 6: Final answer
    x = 76,064.99

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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.