Home / 191,895.81-287,845.20-73,538.88

Finding the Fourth Proportional to 191,895.81, 287,845.20 and 73,538.88

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Solution

The fourth proportional to 191,895.81, 287,845.20 and 73,538.88 is: 110,308.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,895.81 : 287,845.20 = 73,538.88 : x
  2. Step 2: Convert to fraction form
    191,895.81/287,845.20 = 73,538.88/x
  3. Step 3: Cross multiply
    191,895.81x = 287,845.20 × 73,538.88
  4. Step 4: Simplify right side
    191,895.81x = 21,167,813,621.38
  5. Step 5: Solve for x
    x = 21,167,813,621.38/191,895.81
  6. Step 6: Final answer
    x = 110,308.89

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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.