Home / 118,126.80-163,008.99-64,411.38

Finding the Fourth Proportional to 118,126.80, 163,008.99 and 64,411.38

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Solution

The fourth proportional to 118,126.80, 163,008.99 and 64,411.38 is: 88,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,126.80 : 163,008.99 = 64,411.38 : x
  2. Step 2: Convert to fraction form
    118,126.80/163,008.99 = 64,411.38/x
  3. Step 3: Cross multiply
    118,126.80x = 163,008.99 × 64,411.38
  4. Step 4: Simplify right side
    118,126.80x = 10,499,633,998.31
  5. Step 5: Solve for x
    x = 10,499,633,998.31/118,126.80
  6. Step 6: Final answer
    x = 88,884.44

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1.5x scale

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.