Home / 135,490.25-203,235.37-56,561.42

Finding the Fourth Proportional to 135,490.25, 203,235.37 and 56,561.42

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Solution

The fourth proportional to 135,490.25, 203,235.37 and 56,561.42 is: 84,842.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,490.25 : 203,235.37 = 56,561.42 : x
  2. Step 2: Convert to fraction form
    135,490.25/203,235.37 = 56,561.42/x
  3. Step 3: Cross multiply
    135,490.25x = 203,235.37 × 56,561.42
  4. Step 4: Simplify right side
    135,490.25x = 11,495,281,488.11
  5. Step 5: Solve for x
    x = 11,495,281,488.11/135,490.25
  6. Step 6: Final answer
    x = 84,842.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.