Home / 121,114.50-180,896.57-109,699.36

Finding the Fourth Proportional to 121,114.50, 180,896.57 and 109,699.36

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Solution

The fourth proportional to 121,114.50, 180,896.57 and 109,699.36 is: 163,846.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,114.50 : 180,896.57 = 109,699.36 : x
  2. Step 2: Convert to fraction form
    121,114.50/180,896.57 = 109,699.36/x
  3. Step 3: Cross multiply
    121,114.50x = 180,896.57 × 109,699.36
  4. Step 4: Simplify right side
    121,114.50x = 19,844,237,955.20
  5. Step 5: Solve for x
    x = 19,844,237,955.20/121,114.50
  6. Step 6: Final answer
    x = 163,846.92

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1.5x scale

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.