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Finding the Fourth Proportional to 114,693.76, 158,222.44 and 80,721.10

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Solution

The fourth proportional to 114,693.76, 158,222.44 and 80,721.10 is: 111,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,693.76 : 158,222.44 = 80,721.10 : x
  2. Step 2: Convert to fraction form
    114,693.76/158,222.44 = 80,721.10/x
  3. Step 3: Cross multiply
    114,693.76x = 158,222.44 × 80,721.10
  4. Step 4: Simplify right side
    114,693.76x = 12,771,889,401.48
  5. Step 5: Solve for x
    x = 12,771,889,401.48/114,693.76
  6. Step 6: Final answer
    x = 111,356.45

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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.