Home / 133,301.90-183,949.18-72,860.51

Finding the Fourth Proportional to 133,301.90, 183,949.18 and 72,860.51

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Solution

The fourth proportional to 133,301.90, 183,949.18 and 72,860.51 is: 100,543.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,301.90 : 183,949.18 = 72,860.51 : x
  2. Step 2: Convert to fraction form
    133,301.90/183,949.18 = 72,860.51/x
  3. Step 3: Cross multiply
    133,301.90x = 183,949.18 × 72,860.51
  4. Step 4: Simplify right side
    133,301.90x = 13,402,631,346.60
  5. Step 5: Solve for x
    x = 13,402,631,346.60/133,301.90
  6. Step 6: Final answer
    x = 100,543.44

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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.