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Finding the Fourth Proportional to 101,655.83, 140,290.44 and 56,338.76

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Solution

The fourth proportional to 101,655.83, 140,290.44 and 56,338.76 is: 77,750.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,655.83 : 140,290.44 = 56,338.76 : x
  2. Step 2: Convert to fraction form
    101,655.83/140,290.44 = 56,338.76/x
  3. Step 3: Cross multiply
    101,655.83x = 140,290.44 × 56,338.76
  4. Step 4: Simplify right side
    101,655.83x = 7,903,789,429.45
  5. Step 5: Solve for x
    x = 7,903,789,429.45/101,655.83
  6. Step 6: Final answer
    x = 77,750.48

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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.