Home / 191,938.10-287,138.19-165,923.06

Finding the Fourth Proportional to 191,938.10, 287,138.19 and 165,923.06

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Solution

The fourth proportional to 191,938.10, 287,138.19 and 165,923.06 is: 248,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,938.10 : 287,138.19 = 165,923.06 : x
  2. Step 2: Convert to fraction form
    191,938.10/287,138.19 = 165,923.06/x
  3. Step 3: Cross multiply
    191,938.10x = 287,138.19 × 165,923.06
  4. Step 4: Simplify right side
    191,938.10x = 47,642,847,127.66
  5. Step 5: Solve for x
    x = 47,642,847,127.66/191,938.10
  6. Step 6: Final answer
    x = 248,219.85

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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.