Home / 123,384.60-170,037.36-89,335.44

Finding the Fourth Proportional to 123,384.60, 170,037.36 and 89,335.44

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Solution

The fourth proportional to 123,384.60, 170,037.36 and 89,335.44 is: 123,113.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,384.60 : 170,037.36 = 89,335.44 : x
  2. Step 2: Convert to fraction form
    123,384.60/170,037.36 = 89,335.44/x
  3. Step 3: Cross multiply
    123,384.60x = 170,037.36 × 89,335.44
  4. Step 4: Simplify right side
    123,384.60x = 15,190,362,372.04
  5. Step 5: Solve for x
    x = 15,190,362,372.04/123,384.60
  6. Step 6: Final answer
    x = 123,113.92

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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.