Home / 133,150.23-183,746.39-72,720.90

Finding the Fourth Proportional to 133,150.23, 183,746.39 and 72,720.90

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Solution

The fourth proportional to 133,150.23, 183,746.39 and 72,720.90 is: 100,354.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,150.23 : 183,746.39 = 72,720.90 : x
  2. Step 2: Convert to fraction form
    133,150.23/183,746.39 = 72,720.90/x
  3. Step 3: Cross multiply
    133,150.23x = 183,746.39 × 72,720.90
  4. Step 4: Simplify right side
    133,150.23x = 13,362,202,488.95
  5. Step 5: Solve for x
    x = 13,362,202,488.95/133,150.23
  6. Step 6: Final answer
    x = 100,354.33

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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.