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Finding the Fourth Proportional to 101,651.69, 140,275.26 and 56,331.59

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Solution

The fourth proportional to 101,651.69, 140,275.26 and 56,331.59 is: 77,735.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,651.69 : 140,275.26 = 56,331.59 : x
  2. Step 2: Convert to fraction form
    101,651.69/140,275.26 = 56,331.59/x
  3. Step 3: Cross multiply
    101,651.69x = 140,275.26 × 56,331.59
  4. Step 4: Simplify right side
    101,651.69x = 7,901,927,732.09
  5. Step 5: Solve for x
    x = 7,901,927,732.09/101,651.69
  6. Step 6: Final answer
    x = 77,735.33

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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.