Home / 191,976.83-287,741.03-144,439.20

Finding the Fourth Proportional to 191,976.83, 287,741.03 and 144,439.20

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Solution

The fourth proportional to 191,976.83, 287,741.03 and 144,439.20 is: 216,490.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,976.83 : 287,741.03 = 144,439.20 : x
  2. Step 2: Convert to fraction form
    191,976.83/287,741.03 = 144,439.20/x
  3. Step 3: Cross multiply
    191,976.83x = 287,741.03 × 144,439.20
  4. Step 4: Simplify right side
    191,976.83x = 41,561,082,019.47
  5. Step 5: Solve for x
    x = 41,561,082,019.47/191,976.83
  6. Step 6: Final answer
    x = 216,490.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.