Home / 191,617.03-287,460.17-79,236.21

Finding the Fourth Proportional to 191,617.03, 287,460.17 and 79,236.21

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Solution

The fourth proportional to 191,617.03, 287,460.17 and 79,236.21 is: 118,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,617.03 : 287,460.17 = 79,236.21 : x
  2. Step 2: Convert to fraction form
    191,617.03/287,460.17 = 79,236.21/x
  3. Step 3: Cross multiply
    191,617.03x = 287,460.17 × 79,236.21
  4. Step 4: Simplify right side
    191,617.03x = 22,777,254,396.76
  5. Step 5: Solve for x
    x = 22,777,254,396.76/191,617.03
  6. Step 6: Final answer
    x = 118,868.63

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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.