Home / 139,570.29-192,607.91-75,908.55

Finding the Fourth Proportional to 139,570.29, 192,607.91 and 75,908.55

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Solution

The fourth proportional to 139,570.29, 192,607.91 and 75,908.55 is: 104,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,570.29 : 192,607.91 = 75,908.55 : x
  2. Step 2: Convert to fraction form
    139,570.29/192,607.91 = 75,908.55/x
  3. Step 3: Cross multiply
    139,570.29x = 192,607.91 × 75,908.55
  4. Step 4: Simplify right side
    139,570.29x = 14,620,587,166.63
  5. Step 5: Solve for x
    x = 14,620,587,166.63/139,570.29
  6. Step 6: Final answer
    x = 104,754.29

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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.