Home / 109,501.36-164,151.60-72,001.60

Finding the Fourth Proportional to 109,501.36, 164,151.60 and 72,001.60

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Solution

The fourth proportional to 109,501.36, 164,151.60 and 72,001.60 is: 107,936.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,501.36 : 164,151.60 = 72,001.60 : x
  2. Step 2: Convert to fraction form
    109,501.36/164,151.60 = 72,001.60/x
  3. Step 3: Cross multiply
    109,501.36x = 164,151.60 × 72,001.60
  4. Step 4: Simplify right side
    109,501.36x = 11,819,177,842.56
  5. Step 5: Solve for x
    x = 11,819,177,842.56/109,501.36
  6. Step 6: Final answer
    x = 107,936.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.