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Finding the Fourth Proportional to 101,655.33, 140,289.75 and 56,338.26

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Solution

The fourth proportional to 101,655.33, 140,289.75 and 56,338.26 is: 77,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,655.33 : 140,289.75 = 56,338.26 : x
  2. Step 2: Convert to fraction form
    101,655.33/140,289.75 = 56,338.26/x
  3. Step 3: Cross multiply
    101,655.33x = 140,289.75 × 56,338.26
  4. Step 4: Simplify right side
    101,655.33x = 7,903,680,410.84
  5. Step 5: Solve for x
    x = 7,903,680,410.84/101,655.33
  6. Step 6: Final answer
    x = 77,749.79

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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.