Home / 151,953.79-209,708.86-83,984.04

Finding the Fourth Proportional to 151,953.79, 209,708.86 and 83,984.04

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Solution

The fourth proportional to 151,953.79, 209,708.86 and 83,984.04 is: 115,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,953.79 : 209,708.86 = 83,984.04 : x
  2. Step 2: Convert to fraction form
    151,953.79/209,708.86 = 83,984.04/x
  3. Step 3: Cross multiply
    151,953.79x = 209,708.86 × 83,984.04
  4. Step 4: Simplify right side
    151,953.79x = 17,612,197,286.59
  5. Step 5: Solve for x
    x = 17,612,197,286.59/151,953.79
  6. Step 6: Final answer
    x = 115,904.96

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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.