Home / 114,038.20-171,057.30-76,713.40

Finding the Fourth Proportional to 114,038.20, 171,057.30 and 76,713.40

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Solution

The fourth proportional to 114,038.20, 171,057.30 and 76,713.40 is: 115,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,038.20 : 171,057.30 = 76,713.40 : x
  2. Step 2: Convert to fraction form
    114,038.20/171,057.30 = 76,713.40/x
  3. Step 3: Cross multiply
    114,038.20x = 171,057.30 × 76,713.40
  4. Step 4: Simplify right side
    114,038.20x = 13,122,387,077.82
  5. Step 5: Solve for x
    x = 13,122,387,077.82/114,038.20
  6. Step 6: Final answer
    x = 115,070.10

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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.