Home / 133,209.93-183,832.35-72,784.32

Finding the Fourth Proportional to 133,209.93, 183,832.35 and 72,784.32

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Solution

The fourth proportional to 133,209.93, 183,832.35 and 72,784.32 is: 100,443.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,209.93 : 183,832.35 = 72,784.32 : x
  2. Step 2: Convert to fraction form
    133,209.93/183,832.35 = 72,784.32/x
  3. Step 3: Cross multiply
    133,209.93x = 183,832.35 × 72,784.32
  4. Step 4: Simplify right side
    133,209.93x = 13,380,112,762.85
  5. Step 5: Solve for x
    x = 13,380,112,762.85/133,209.93
  6. Step 6: Final answer
    x = 100,443.81

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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.