Home / 98,153.21-135,452.08-55,712.45

Finding the Fourth Proportional to 98,153.21, 135,452.08 and 55,712.45

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Solution

The fourth proportional to 98,153.21, 135,452.08 and 55,712.45 is: 76,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,153.21 : 135,452.08 = 55,712.45 : x
  2. Step 2: Convert to fraction form
    98,153.21/135,452.08 = 55,712.45/x
  3. Step 3: Cross multiply
    98,153.21x = 135,452.08 × 55,712.45
  4. Step 4: Simplify right side
    98,153.21x = 7,546,367,642.67
  5. Step 5: Solve for x
    x = 7,546,367,642.67/98,153.21
  6. Step 6: Final answer
    x = 76,883.55

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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.