Home / 98,880.12-136,435.32-79,984.44

Finding the Fourth Proportional to 98,880.12, 136,435.32 and 79,984.44

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Solution

The fourth proportional to 98,880.12, 136,435.32 and 79,984.44 is: 110,362.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,880.12 : 136,435.32 = 79,984.44 : x
  2. Step 2: Convert to fraction form
    98,880.12/136,435.32 = 79,984.44/x
  3. Step 3: Cross multiply
    98,880.12x = 136,435.32 × 79,984.44
  4. Step 4: Simplify right side
    98,880.12x = 10,912,702,666.42
  5. Step 5: Solve for x
    x = 10,912,702,666.42/98,880.12
  6. Step 6: Final answer
    x = 110,362.96

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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.