Home / 100,934.92-139,140.75-64,632.34

Finding the Fourth Proportional to 100,934.92, 139,140.75 and 64,632.34

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Solution

The fourth proportional to 100,934.92, 139,140.75 and 64,632.34 is: 89,096.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,934.92 : 139,140.75 = 64,632.34 : x
  2. Step 2: Convert to fraction form
    100,934.92/139,140.75 = 64,632.34/x
  3. Step 3: Cross multiply
    100,934.92x = 139,140.75 × 64,632.34
  4. Step 4: Simplify right side
    100,934.92x = 8,992,992,261.86
  5. Step 5: Solve for x
    x = 8,992,992,261.86/100,934.92
  6. Step 6: Final answer
    x = 89,096.94

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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.