Home / 123,840.32-170,901.62-70,123.88

Finding the Fourth Proportional to 123,840.32, 170,901.62 and 70,123.88

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Solution

The fourth proportional to 123,840.32, 170,901.62 and 70,123.88 is: 96,772.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,840.32 : 170,901.62 = 70,123.88 : x
  2. Step 2: Convert to fraction form
    123,840.32/170,901.62 = 70,123.88/x
  3. Step 3: Cross multiply
    123,840.32x = 170,901.62 × 70,123.88
  4. Step 4: Simplify right side
    123,840.32x = 11,984,284,692.69
  5. Step 5: Solve for x
    x = 11,984,284,692.69/123,840.32
  6. Step 6: Final answer
    x = 96,772.07

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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.