Home / 111,213.24-153,511.70-67,605.63

Finding the Fourth Proportional to 111,213.24, 153,511.70 and 67,605.63

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Solution

The fourth proportional to 111,213.24, 153,511.70 and 67,605.63 is: 93,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,213.24 : 153,511.70 = 67,605.63 : x
  2. Step 2: Convert to fraction form
    111,213.24/153,511.70 = 67,605.63/x
  3. Step 3: Cross multiply
    111,213.24x = 153,511.70 × 67,605.63
  4. Step 4: Simplify right side
    111,213.24x = 10,378,254,852.84
  5. Step 5: Solve for x
    x = 10,378,254,852.84/111,213.24
  6. Step 6: Final answer
    x = 93,318.52

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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.