Home / 114,784.13-158,330.61-78,911.87

Finding the Fourth Proportional to 114,784.13, 158,330.61 and 78,911.87

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Solution

The fourth proportional to 114,784.13, 158,330.61 and 78,911.87 is: 108,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,784.13 : 158,330.61 = 78,911.87 : x
  2. Step 2: Convert to fraction form
    114,784.13/158,330.61 = 78,911.87/x
  3. Step 3: Cross multiply
    114,784.13x = 158,330.61 × 78,911.87
  4. Step 4: Simplify right side
    114,784.13x = 12,494,163,721.69
  5. Step 5: Solve for x
    x = 12,494,163,721.69/114,784.13
  6. Step 6: Final answer
    x = 108,849.23

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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.