Home / 139,349.91-192,303.68-75,688.23

Finding the Fourth Proportional to 139,349.91, 192,303.68 and 75,688.23

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Solution

The fourth proportional to 139,349.91, 192,303.68 and 75,688.23 is: 104,450.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,349.91 : 192,303.68 = 75,688.23 : x
  2. Step 2: Convert to fraction form
    139,349.91/192,303.68 = 75,688.23/x
  3. Step 3: Cross multiply
    139,349.91x = 192,303.68 × 75,688.23
  4. Step 4: Simplify right side
    139,349.91x = 14,555,124,783.25
  5. Step 5: Solve for x
    x = 14,555,124,783.25/139,349.91
  6. Step 6: Final answer
    x = 104,450.19

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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.