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Finding the Fourth Proportional to 145,357.74, 218,105.46 and 61,136.37

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Solution

The fourth proportional to 145,357.74, 218,105.46 and 61,136.37 is: 91,733.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,357.74 : 218,105.46 = 61,136.37 : x
  2. Step 2: Convert to fraction form
    145,357.74/218,105.46 = 61,136.37/x
  3. Step 3: Cross multiply
    145,357.74x = 218,105.46 × 61,136.37
  4. Step 4: Simplify right side
    145,357.74x = 13,334,176,101.58
  5. Step 5: Solve for x
    x = 13,334,176,101.58/145,357.74
  6. Step 6: Final answer
    x = 91,733.51

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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.