Home / 133,242.57-183,869.29-72,815.25

Finding the Fourth Proportional to 133,242.57, 183,869.29 and 72,815.25

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Solution

The fourth proportional to 133,242.57, 183,869.29 and 72,815.25 is: 100,482.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,242.57 : 183,869.29 = 72,815.25 : x
  2. Step 2: Convert to fraction form
    133,242.57/183,869.29 = 72,815.25/x
  3. Step 3: Cross multiply
    133,242.57x = 183,869.29 × 72,815.25
  4. Step 4: Simplify right side
    133,242.57x = 13,388,489,099.20
  5. Step 5: Solve for x
    x = 13,388,489,099.20/133,242.57
  6. Step 6: Final answer
    x = 100,482.07

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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.