Home / 151,570.30-209,168.04-83,589.70

Finding the Fourth Proportional to 151,570.30, 209,168.04 and 83,589.70

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Solution

The fourth proportional to 151,570.30, 209,168.04 and 83,589.70 is: 115,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,570.30 : 209,168.04 = 83,589.70 : x
  2. Step 2: Convert to fraction form
    151,570.30/209,168.04 = 83,589.70/x
  3. Step 3: Cross multiply
    151,570.30x = 209,168.04 × 83,589.70
  4. Step 4: Simplify right side
    151,570.30x = 17,484,293,713.19
  5. Step 5: Solve for x
    x = 17,484,293,713.19/151,570.30
  6. Step 6: Final answer
    x = 115,354.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.