Home / 111,279.73-153,558.75-70,989.17

Finding the Fourth Proportional to 111,279.73, 153,558.75 and 70,989.17

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Solution

The fourth proportional to 111,279.73, 153,558.75 and 70,989.17 is: 97,960.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,279.73 : 153,558.75 = 70,989.17 : x
  2. Step 2: Convert to fraction form
    111,279.73/153,558.75 = 70,989.17/x
  3. Step 3: Cross multiply
    111,279.73x = 153,558.75 × 70,989.17
  4. Step 4: Simplify right side
    111,279.73x = 10,901,008,208.74
  5. Step 5: Solve for x
    x = 10,901,008,208.74/111,279.73
  6. Step 6: Final answer
    x = 97,960.41

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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.