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Finding the Fourth Proportional to 113,989.66, 157,224.15 and 80,005.73

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Solution

The fourth proportional to 113,989.66, 157,224.15 and 80,005.73 is: 110,350.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,989.66 : 157,224.15 = 80,005.73 : x
  2. Step 2: Convert to fraction form
    113,989.66/157,224.15 = 80,005.73/x
  3. Step 3: Cross multiply
    113,989.66x = 157,224.15 × 80,005.73
  4. Step 4: Simplify right side
    113,989.66x = 12,578,832,494.35
  5. Step 5: Solve for x
    x = 12,578,832,494.35/113,989.66
  6. Step 6: Final answer
    x = 110,350.64

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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.