Home / 133,110.56-183,691.64-72,681.17

Finding the Fourth Proportional to 133,110.56, 183,691.64 and 72,681.17

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Solution

The fourth proportional to 133,110.56, 183,691.64 and 72,681.17 is: 100,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,110.56 : 183,691.64 = 72,681.17 : x
  2. Step 2: Convert to fraction form
    133,110.56/183,691.64 = 72,681.17/x
  3. Step 3: Cross multiply
    133,110.56x = 183,691.64 × 72,681.17
  4. Step 4: Simplify right side
    133,110.56x = 13,350,922,577.66
  5. Step 5: Solve for x
    x = 13,350,922,577.66/133,110.56
  6. Step 6: Final answer
    x = 100,299.50

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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.