Home / 142,285.68-213,436.88-53,539.96

Finding the Fourth Proportional to 142,285.68, 213,436.88 and 53,539.96

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Solution

The fourth proportional to 142,285.68, 213,436.88 and 53,539.96 is: 80,313.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,285.68 : 213,436.88 = 53,539.96 : x
  2. Step 2: Convert to fraction form
    142,285.68/213,436.88 = 53,539.96/x
  3. Step 3: Cross multiply
    142,285.68x = 213,436.88 × 53,539.96
  4. Step 4: Simplify right side
    142,285.68x = 11,427,401,417.21
  5. Step 5: Solve for x
    x = 11,427,401,417.21/142,285.68
  6. Step 6: Final answer
    x = 80,313.08

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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.