Home / 133,299.82-183,953.28-72,870.43

Finding the Fourth Proportional to 133,299.82, 183,953.28 and 72,870.43

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Solution

The fourth proportional to 133,299.82, 183,953.28 and 72,870.43 is: 100,560.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,299.82 : 183,953.28 = 72,870.43 : x
  2. Step 2: Convert to fraction form
    133,299.82/183,953.28 = 72,870.43/x
  3. Step 3: Cross multiply
    133,299.82x = 183,953.28 × 72,870.43
  4. Step 4: Simplify right side
    133,299.82x = 13,404,754,613.51
  5. Step 5: Solve for x
    x = 13,404,754,613.51/133,299.82
  6. Step 6: Final answer
    x = 100,560.94

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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.