Home / 191,447.41-287,171.03-73,130.71

Finding the Fourth Proportional to 191,447.41, 287,171.03 and 73,130.71

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Solution

The fourth proportional to 191,447.41, 287,171.03 and 73,130.71 is: 109,696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,447.41 : 287,171.03 = 73,130.71 : x
  2. Step 2: Convert to fraction form
    191,447.41/287,171.03 = 73,130.71/x
  3. Step 3: Cross multiply
    191,447.41x = 287,171.03 × 73,130.71
  4. Step 4: Simplify right side
    191,447.41x = 21,001,020,949.68
  5. Step 5: Solve for x
    x = 21,001,020,949.68/191,447.41
  6. Step 6: Final answer
    x = 109,696.03

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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.