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Finding the Fourth Proportional to 161,179.67, 222,429.02 and 100,785.67

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Solution

The fourth proportional to 161,179.67, 222,429.02 and 100,785.67 is: 139,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,179.67 : 222,429.02 = 100,785.67 : x
  2. Step 2: Convert to fraction form
    161,179.67/222,429.02 = 100,785.67/x
  3. Step 3: Cross multiply
    161,179.67x = 222,429.02 × 100,785.67
  4. Step 4: Simplify right side
    161,179.67x = 22,417,657,315.06
  5. Step 5: Solve for x
    x = 22,417,657,315.06/161,179.67
  6. Step 6: Final answer
    x = 139,084.89

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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.