Home / 123,829.82-170,890.89-70,107.74

Finding the Fourth Proportional to 123,829.82, 170,890.89 and 70,107.74

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Solution

The fourth proportional to 123,829.82, 170,890.89 and 70,107.74 is: 96,751.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,829.82 : 170,890.89 = 70,107.74 : x
  2. Step 2: Convert to fraction form
    123,829.82/170,890.89 = 70,107.74/x
  3. Step 3: Cross multiply
    123,829.82x = 170,890.89 × 70,107.74
  4. Step 4: Simplify right side
    123,829.82x = 11,980,774,084.49
  5. Step 5: Solve for x
    x = 11,980,774,084.49/123,829.82
  6. Step 6: Final answer
    x = 96,751.93

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1.5x scale

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.