Home / 191,965.43-287,724-144,427.85

Finding the Fourth Proportional to 191,965.43, 287,724 and 144,427.85

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Solution

The fourth proportional to 191,965.43, 287,724 and 144,427.85 is: 216,473.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,965.43 : 287,724 = 144,427.85 : x
  2. Step 2: Convert to fraction form
    191,965.43/287,724 = 144,427.85/x
  3. Step 3: Cross multiply
    191,965.43x = 287,724 × 144,427.85
  4. Step 4: Simplify right side
    191,965.43x = 41,555,358,713.40
  5. Step 5: Solve for x
    x = 41,555,358,713.40/191,965.43
  6. Step 6: Final answer
    x = 216,473.14

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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.