Home / 123,835.32-170,893.41-70,130.79

Finding the Fourth Proportional to 123,835.32, 170,893.41 and 70,130.79

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Solution

The fourth proportional to 123,835.32, 170,893.41 and 70,130.79 is: 96,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,835.32 : 170,893.41 = 70,130.79 : x
  2. Step 2: Convert to fraction form
    123,835.32/170,893.41 = 70,130.79/x
  3. Step 3: Cross multiply
    123,835.32x = 170,893.41 × 70,130.79
  4. Step 4: Simplify right side
    123,835.32x = 11,984,889,849.09
  5. Step 5: Solve for x
    x = 11,984,889,849.09/123,835.32
  6. Step 6: Final answer
    x = 96,780.87

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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.