Home / 117,302.88-162,011.66-79,511.52

Finding the Fourth Proportional to 117,302.88, 162,011.66 and 79,511.52

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Solution

The fourth proportional to 117,302.88, 162,011.66 and 79,511.52 is: 109,816.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,302.88 : 162,011.66 = 79,511.52 : x
  2. Step 2: Convert to fraction form
    117,302.88/162,011.66 = 79,511.52/x
  3. Step 3: Cross multiply
    117,302.88x = 162,011.66 × 79,511.52
  4. Step 4: Simplify right side
    117,302.88x = 12,881,793,344.32
  5. Step 5: Solve for x
    x = 12,881,793,344.32/117,302.88
  6. Step 6: Final answer
    x = 109,816.51

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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.