Home / 145,595.82-200,921.81-81,933.61

Finding the Fourth Proportional to 145,595.82, 200,921.81 and 81,933.61

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Solution

The fourth proportional to 145,595.82, 200,921.81 and 81,933.61 is: 113,068.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,595.82 : 200,921.81 = 81,933.61 : x
  2. Step 2: Convert to fraction form
    145,595.82/200,921.81 = 81,933.61/x
  3. Step 3: Cross multiply
    145,595.82x = 200,921.81 × 81,933.61
  4. Step 4: Simplify right side
    145,595.82x = 16,462,249,221.03
  5. Step 5: Solve for x
    x = 16,462,249,221.03/145,595.82
  6. Step 6: Final answer
    x = 113,068.14

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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.