Home / 98,178.90-135,487.53-55,738.14

Finding the Fourth Proportional to 98,178.90, 135,487.53 and 55,738.14

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Solution

The fourth proportional to 98,178.90, 135,487.53 and 55,738.14 is: 76,919.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,178.90 : 135,487.53 = 55,738.14 : x
  2. Step 2: Convert to fraction form
    98,178.90/135,487.53 = 55,738.14/x
  3. Step 3: Cross multiply
    98,178.90x = 135,487.53 × 55,738.14
  4. Step 4: Simplify right side
    98,178.90x = 7,551,822,915.39
  5. Step 5: Solve for x
    x = 7,551,822,915.39/98,178.90
  6. Step 6: Final answer
    x = 76,919.00

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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.