Home / 142,308.05-213,462.08-53,581.46

Finding the Fourth Proportional to 142,308.05, 213,462.08 and 53,581.46

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Solution

The fourth proportional to 142,308.05, 213,462.08 and 53,581.46 is: 80,372.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,308.05 : 213,462.08 = 53,581.46 : x
  2. Step 2: Convert to fraction form
    142,308.05/213,462.08 = 53,581.46/x
  3. Step 3: Cross multiply
    142,308.05x = 213,462.08 × 53,581.46
  4. Step 4: Simplify right side
    142,308.05x = 11,437,609,901.04
  5. Step 5: Solve for x
    x = 11,437,609,901.04/142,308.05
  6. Step 6: Final answer
    x = 80,372.19

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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.