Home / 191,731.35-287,638.55-73,402.70

Finding the Fourth Proportional to 191,731.35, 287,638.55 and 73,402.70

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Solution

The fourth proportional to 191,731.35, 287,638.55 and 73,402.70 is: 110,119.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,731.35 : 287,638.55 = 73,402.70 : x
  2. Step 2: Convert to fraction form
    191,731.35/287,638.55 = 73,402.70/x
  3. Step 3: Cross multiply
    191,731.35x = 287,638.55 × 73,402.70
  4. Step 4: Simplify right side
    191,731.35x = 21,113,444,388.88
  5. Step 5: Solve for x
    x = 21,113,444,388.88/191,731.35
  6. Step 6: Final answer
    x = 110,119.94

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1.5x scale

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.