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Finding the Fourth Proportional to 172,699.04, 258,673.59 and 83,765.63

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Solution

The fourth proportional to 172,699.04, 258,673.59 and 83,765.63 is: 125,466.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,699.04 : 258,673.59 = 83,765.63 : x
  2. Step 2: Convert to fraction form
    172,699.04/258,673.59 = 83,765.63/x
  3. Step 3: Cross multiply
    172,699.04x = 258,673.59 × 83,765.63
  4. Step 4: Simplify right side
    172,699.04x = 21,667,954,937.34
  5. Step 5: Solve for x
    x = 21,667,954,937.34/172,699.04
  6. Step 6: Final answer
    x = 125,466.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.