Home / 125,021.47-172,514.46-99,592.60

Finding the Fourth Proportional to 125,021.47, 172,514.46 and 99,592.60

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Solution

The fourth proportional to 125,021.47, 172,514.46 and 99,592.60 is: 137,425.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,021.47 : 172,514.46 = 99,592.60 : x
  2. Step 2: Convert to fraction form
    125,021.47/172,514.46 = 99,592.60/x
  3. Step 3: Cross multiply
    125,021.47x = 172,514.46 × 99,592.60
  4. Step 4: Simplify right side
    125,021.47x = 17,181,163,609.00
  5. Step 5: Solve for x
    x = 17,181,163,609.00/125,021.47
  6. Step 6: Final answer
    x = 137,425.70

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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.