Home / 122,781.76-183,276.26-105,363.52

Finding the Fourth Proportional to 122,781.76, 183,276.26 and 105,363.52

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Solution

The fourth proportional to 122,781.76, 183,276.26 and 105,363.52 is: 157,276.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,781.76 : 183,276.26 = 105,363.52 : x
  2. Step 2: Convert to fraction form
    122,781.76/183,276.26 = 105,363.52/x
  3. Step 3: Cross multiply
    122,781.76x = 183,276.26 × 105,363.52
  4. Step 4: Simplify right side
    122,781.76x = 19,310,631,886.04
  5. Step 5: Solve for x
    x = 19,310,631,886.04/122,781.76
  6. Step 6: Final answer
    x = 157,276.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.