Home / 139,345.04-192,297.17-75,682.86

Finding the Fourth Proportional to 139,345.04, 192,297.17 and 75,682.86

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Solution

The fourth proportional to 139,345.04, 192,297.17 and 75,682.86 is: 104,442.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,345.04 : 192,297.17 = 75,682.86 : x
  2. Step 2: Convert to fraction form
    139,345.04/192,297.17 = 75,682.86/x
  3. Step 3: Cross multiply
    139,345.04x = 192,297.17 × 75,682.86
  4. Step 4: Simplify right side
    139,345.04x = 14,553,599,263.60
  5. Step 5: Solve for x
    x = 14,553,599,263.60/139,345.04
  6. Step 6: Final answer
    x = 104,442.89

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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.