Home / 145,709.39-218,322.45-88,610.57

Finding the Fourth Proportional to 145,709.39, 218,322.45 and 88,610.57

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Solution

The fourth proportional to 145,709.39, 218,322.45 and 88,610.57 is: 132,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,709.39 : 218,322.45 = 88,610.57 : x
  2. Step 2: Convert to fraction form
    145,709.39/218,322.45 = 88,610.57/x
  3. Step 3: Cross multiply
    145,709.39x = 218,322.45 × 88,610.57
  4. Step 4: Simplify right side
    145,709.39x = 19,345,675,646.68
  5. Step 5: Solve for x
    x = 19,345,675,646.68/145,709.39
  6. Step 6: Final answer
    x = 132,768.91

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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.