Home / 133,070.82-183,638.10-72,641.52

Finding the Fourth Proportional to 133,070.82, 183,638.10 and 72,641.52

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Solution

The fourth proportional to 133,070.82, 183,638.10 and 72,641.52 is: 100,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,070.82 : 183,638.10 = 72,641.52 : x
  2. Step 2: Convert to fraction form
    133,070.82/183,638.10 = 72,641.52/x
  3. Step 3: Cross multiply
    133,070.82x = 183,638.10 × 72,641.52
  4. Step 4: Simplify right side
    133,070.82x = 13,339,750,713.91
  5. Step 5: Solve for x
    x = 13,339,750,713.91/133,070.82
  6. Step 6: Final answer
    x = 100,245.50

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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.