Home / 133,281.40-198,890.64-119,087.16

Finding the Fourth Proportional to 133,281.40, 198,890.64 and 119,087.16

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Solution

The fourth proportional to 133,281.40, 198,890.64 and 119,087.16 is: 177,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,281.40 : 198,890.64 = 119,087.16 : x
  2. Step 2: Convert to fraction form
    133,281.40/198,890.64 = 119,087.16/x
  3. Step 3: Cross multiply
    133,281.40x = 198,890.64 × 119,087.16
  4. Step 4: Simplify right side
    133,281.40x = 23,685,321,841.10
  5. Step 5: Solve for x
    x = 23,685,321,841.10/133,281.40
  6. Step 6: Final answer
    x = 177,709.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.