Home / 159,533.22-220,153.01-86,936.75

Finding the Fourth Proportional to 159,533.22, 220,153.01 and 86,936.75

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Solution

The fourth proportional to 159,533.22, 220,153.01 and 86,936.75 is: 119,971.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,533.22 : 220,153.01 = 86,936.75 : x
  2. Step 2: Convert to fraction form
    159,533.22/220,153.01 = 86,936.75/x
  3. Step 3: Cross multiply
    159,533.22x = 220,153.01 × 86,936.75
  4. Step 4: Simplify right side
    159,533.22x = 19,139,385,656.67
  5. Step 5: Solve for x
    x = 19,139,385,656.67/159,533.22
  6. Step 6: Final answer
    x = 119,971.16

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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.