Home / 139,173.20-192,058.16-75,509.62

Finding the Fourth Proportional to 139,173.20, 192,058.16 and 75,509.62

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Solution

The fourth proportional to 139,173.20, 192,058.16 and 75,509.62 is: 104,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,173.20 : 192,058.16 = 75,509.62 : x
  2. Step 2: Convert to fraction form
    139,173.20/192,058.16 = 75,509.62/x
  3. Step 3: Cross multiply
    139,173.20x = 192,058.16 × 75,509.62
  4. Step 4: Simplify right side
    139,173.20x = 14,502,238,679.50
  5. Step 5: Solve for x
    x = 14,502,238,679.50/139,173.20
  6. Step 6: Final answer
    x = 104,202.81

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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.