Home / 133,104.51-183,678.98-72,677.70

Finding the Fourth Proportional to 133,104.51, 183,678.98 and 72,677.70

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Solution

The fourth proportional to 133,104.51, 183,678.98 and 72,677.70 is: 100,292.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,104.51 : 183,678.98 = 72,677.70 : x
  2. Step 2: Convert to fraction form
    133,104.51/183,678.98 = 72,677.70/x
  3. Step 3: Cross multiply
    133,104.51x = 183,678.98 × 72,677.70
  4. Step 4: Simplify right side
    133,104.51x = 13,349,365,441.36
  5. Step 5: Solve for x
    x = 13,349,365,441.36/133,104.51
  6. Step 6: Final answer
    x = 100,292.36

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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.