Home / 99,135.68-148,728.72-28,058.24

Finding the Fourth Proportional to 99,135.68, 148,728.72 and 28,058.24

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Solution

The fourth proportional to 99,135.68, 148,728.72 and 28,058.24 is: 42,094.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,135.68 : 148,728.72 = 28,058.24 : x
  2. Step 2: Convert to fraction form
    99,135.68/148,728.72 = 28,058.24/x
  3. Step 3: Cross multiply
    99,135.68x = 148,728.72 × 28,058.24
  4. Step 4: Simplify right side
    99,135.68x = 4,173,066,120.65
  5. Step 5: Solve for x
    x = 4,173,066,120.65/99,135.68
  6. Step 6: Final answer
    x = 42,094.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.