Home / 114,553.06-158,165.13-76,402.78

Finding the Fourth Proportional to 114,553.06, 158,165.13 and 76,402.78

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Solution

The fourth proportional to 114,553.06, 158,165.13 and 76,402.78 is: 105,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,553.06 : 158,165.13 = 76,402.78 : x
  2. Step 2: Convert to fraction form
    114,553.06/158,165.13 = 76,402.78/x
  3. Step 3: Cross multiply
    114,553.06x = 158,165.13 × 76,402.78
  4. Step 4: Simplify right side
    114,553.06x = 12,084,255,631.06
  5. Step 5: Solve for x
    x = 12,084,255,631.06/114,553.06
  6. Step 6: Final answer
    x = 105,490.47

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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.