Home / 219,581.40-303,022.26-118,979.40

Finding the Fourth Proportional to 219,581.40, 303,022.26 and 118,979.40

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Solution

The fourth proportional to 219,581.40, 303,022.26 and 118,979.40 is: 164,191.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,581.40 : 303,022.26 = 118,979.40 : x
  2. Step 2: Convert to fraction form
    219,581.40/303,022.26 = 118,979.40/x
  3. Step 3: Cross multiply
    219,581.40x = 303,022.26 × 118,979.40
  4. Step 4: Simplify right side
    219,581.40x = 36,053,406,681.44
  5. Step 5: Solve for x
    x = 36,053,406,681.44/219,581.40
  6. Step 6: Final answer
    x = 164,191.53

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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.