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Finding the Fourth Proportional to 135,461.36, 186,935.60 and 75,035.76

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Solution

The fourth proportional to 135,461.36, 186,935.60 and 75,035.76 is: 103,548.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,461.36 : 186,935.60 = 75,035.76 : x
  2. Step 2: Convert to fraction form
    135,461.36/186,935.60 = 75,035.76/x
  3. Step 3: Cross multiply
    135,461.36x = 186,935.60 × 75,035.76
  4. Step 4: Simplify right side
    135,461.36x = 14,026,854,441.88
  5. Step 5: Solve for x
    x = 14,026,854,441.88/135,461.36
  6. Step 6: Final answer
    x = 103,548.75

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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.