Home / 161,318.18-222,549.45-100,783.46

Finding the Fourth Proportional to 161,318.18, 222,549.45 and 100,783.46

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Solution

The fourth proportional to 161,318.18, 222,549.45 and 100,783.46 is: 139,037.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,318.18 : 222,549.45 = 100,783.46 : x
  2. Step 2: Convert to fraction form
    161,318.18/222,549.45 = 100,783.46/x
  3. Step 3: Cross multiply
    161,318.18x = 222,549.45 × 100,783.46
  4. Step 4: Simplify right side
    161,318.18x = 22,429,303,592.10
  5. Step 5: Solve for x
    x = 22,429,303,592.10/161,318.18
  6. Step 6: Final answer
    x = 139,037.67

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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.