Home / 118,305.20-163,263.66-64,592.48

Finding the Fourth Proportional to 118,305.20, 163,263.66 and 64,592.48

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Solution

The fourth proportional to 118,305.20, 163,263.66 and 64,592.48 is: 89,138.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,305.20 : 163,263.66 = 64,592.48 : x
  2. Step 2: Convert to fraction form
    118,305.20/163,263.66 = 64,592.48/x
  3. Step 3: Cross multiply
    118,305.20x = 163,263.66 × 64,592.48
  4. Step 4: Simplify right side
    118,305.20x = 10,545,604,693.28
  5. Step 5: Solve for x
    x = 10,545,604,693.28/118,305.20
  6. Step 6: Final answer
    x = 89,138.98

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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.