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Finding the Fourth Proportional to 172,001.30, 258,001.95 and 130,010.90

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Solution

The fourth proportional to 172,001.30, 258,001.95 and 130,010.90 is: 195,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,001.30 : 258,001.95 = 130,010.90 : x
  2. Step 2: Convert to fraction form
    172,001.30/258,001.95 = 130,010.90/x
  3. Step 3: Cross multiply
    172,001.30x = 258,001.95 × 130,010.90
  4. Step 4: Simplify right side
    172,001.30x = 33,543,065,721.26
  5. Step 5: Solve for x
    x = 33,543,065,721.26/172,001.30
  6. Step 6: Final answer
    x = 195,016.35

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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.