Home / 139,226.79-192,133.05-75,564.58

Finding the Fourth Proportional to 139,226.79, 192,133.05 and 75,564.58

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Solution

The fourth proportional to 139,226.79, 192,133.05 and 75,564.58 is: 104,279.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,226.79 : 192,133.05 = 75,564.58 : x
  2. Step 2: Convert to fraction form
    139,226.79/192,133.05 = 75,564.58/x
  3. Step 3: Cross multiply
    139,226.79x = 192,133.05 × 75,564.58
  4. Step 4: Simplify right side
    139,226.79x = 14,518,453,227.37
  5. Step 5: Solve for x
    x = 14,518,453,227.37/139,226.79
  6. Step 6: Final answer
    x = 104,279.16

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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.