Home / 142,595.52-213,741.81-53,811.42

Finding the Fourth Proportional to 142,595.52, 213,741.81 and 53,811.42

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Solution

The fourth proportional to 142,595.52, 213,741.81 and 53,811.42 is: 80,659.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,595.52 : 213,741.81 = 53,811.42 : x
  2. Step 2: Convert to fraction form
    142,595.52/213,741.81 = 53,811.42/x
  3. Step 3: Cross multiply
    142,595.52x = 213,741.81 × 53,811.42
  4. Step 4: Simplify right side
    142,595.52x = 11,501,750,309.47
  5. Step 5: Solve for x
    x = 11,501,750,309.47/142,595.52
  6. Step 6: Final answer
    x = 80,659.97

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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.