Home / 98,146.90-135,432.55-55,131.22

Finding the Fourth Proportional to 98,146.90, 135,432.55 and 55,131.22

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Solution

The fourth proportional to 98,146.90, 135,432.55 and 55,131.22 is: 76,075.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,146.90 : 135,432.55 = 55,131.22 : x
  2. Step 2: Convert to fraction form
    98,146.90/135,432.55 = 55,131.22/x
  3. Step 3: Cross multiply
    98,146.90x = 135,432.55 × 55,131.22
  4. Step 4: Simplify right side
    98,146.90x = 7,466,561,709.21
  5. Step 5: Solve for x
    x = 7,466,561,709.21/98,146.90
  6. Step 6: Final answer
    x = 76,075.37

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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.