Home / 181,841.12-251,018.40-122,259.68

Finding the Fourth Proportional to 181,841.12, 251,018.40 and 122,259.68

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Solution

The fourth proportional to 181,841.12, 251,018.40 and 122,259.68 is: 168,770.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,841.12 : 251,018.40 = 122,259.68 : x
  2. Step 2: Convert to fraction form
    181,841.12/251,018.40 = 122,259.68/x
  3. Step 3: Cross multiply
    181,841.12x = 251,018.40 × 122,259.68
  4. Step 4: Simplify right side
    181,841.12x = 30,689,429,258.11
  5. Step 5: Solve for x
    x = 30,689,429,258.11/181,841.12
  6. Step 6: Final answer
    x = 168,770.57

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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.