Home / 133,150.25-183,746.36-72,720.92

Finding the Fourth Proportional to 133,150.25, 183,746.36 and 72,720.92

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Solution

The fourth proportional to 133,150.25, 183,746.36 and 72,720.92 is: 100,354.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,150.25 : 183,746.36 = 72,720.92 : x
  2. Step 2: Convert to fraction form
    133,150.25/183,746.36 = 72,720.92/x
  3. Step 3: Cross multiply
    133,150.25x = 183,746.36 × 72,720.92
  4. Step 4: Simplify right side
    133,150.25x = 13,362,204,987.02
  5. Step 5: Solve for x
    x = 13,362,204,987.02/133,150.25
  6. Step 6: Final answer
    x = 100,354.33

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1.5x scale

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.