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Finding the Fourth Proportional to 139,215.93, 192,118.08 and 75,553.72

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Solution

The fourth proportional to 139,215.93, 192,118.08 and 75,553.72 is: 104,264.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,215.93 : 192,118.08 = 75,553.72 : x
  2. Step 2: Convert to fraction form
    139,215.93/192,118.08 = 75,553.72/x
  3. Step 3: Cross multiply
    139,215.93x = 192,118.08 × 75,553.72
  4. Step 4: Simplify right side
    139,215.93x = 14,515,236,352.13
  5. Step 5: Solve for x
    x = 14,515,236,352.13/139,215.93
  6. Step 6: Final answer
    x = 104,264.19

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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.