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Finding the Fourth Proportional to 139,159.84, 192,035.40 and 75,496.28

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Solution

The fourth proportional to 139,159.84, 192,035.40 and 75,496.28 is: 104,182.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,159.84 : 192,035.40 = 75,496.28 : x
  2. Step 2: Convert to fraction form
    139,159.84/192,035.40 = 75,496.28/x
  3. Step 3: Cross multiply
    139,159.84x = 192,035.40 × 75,496.28
  4. Step 4: Simplify right side
    139,159.84x = 14,497,958,328.31
  5. Step 5: Solve for x
    x = 14,497,958,328.31/139,159.84
  6. Step 6: Final answer
    x = 104,182.06

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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.