Home / 123,427.86-170,330.58-69,712.98

Finding the Fourth Proportional to 123,427.86, 170,330.58 and 69,712.98

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Solution

The fourth proportional to 123,427.86, 170,330.58 and 69,712.98 is: 96,203.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,427.86 : 170,330.58 = 69,712.98 : x
  2. Step 2: Convert to fraction form
    123,427.86/170,330.58 = 69,712.98/x
  3. Step 3: Cross multiply
    123,427.86x = 170,330.58 × 69,712.98
  4. Step 4: Simplify right side
    123,427.86x = 11,874,252,316.93
  5. Step 5: Solve for x
    x = 11,874,252,316.93/123,427.86
  6. Step 6: Final answer
    x = 96,203.99

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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.