Home / 117,822.40-162,542.02-79,569.52

Finding the Fourth Proportional to 117,822.40, 162,542.02 and 79,569.52

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Solution

The fourth proportional to 117,822.40, 162,542.02 and 79,569.52 is: 109,770.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,822.40 : 162,542.02 = 79,569.52 : x
  2. Step 2: Convert to fraction form
    117,822.40/162,542.02 = 79,569.52/x
  3. Step 3: Cross multiply
    117,822.40x = 162,542.02 × 79,569.52
  4. Step 4: Simplify right side
    117,822.40x = 12,933,390,511.23
  5. Step 5: Solve for x
    x = 12,933,390,511.23/117,822.40
  6. Step 6: Final answer
    x = 109,770.22

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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.