Home / 133,082.90-183,646.64-72,641.50

Finding the Fourth Proportional to 133,082.90, 183,646.64 and 72,641.50

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Solution

The fourth proportional to 133,082.90, 183,646.64 and 72,641.50 is: 100,241.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,082.90 : 183,646.64 = 72,641.50 : x
  2. Step 2: Convert to fraction form
    133,082.90/183,646.64 = 72,641.50/x
  3. Step 3: Cross multiply
    133,082.90x = 183,646.64 × 72,641.50
  4. Step 4: Simplify right side
    133,082.90x = 13,340,367,399.56
  5. Step 5: Solve for x
    x = 13,340,367,399.56/133,082.90
  6. Step 6: Final answer
    x = 100,241.03

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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.