Home / 145,839.54-218,740.86-57,155.33

Finding the Fourth Proportional to 145,839.54, 218,740.86 and 57,155.33

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Solution

The fourth proportional to 145,839.54, 218,740.86 and 57,155.33 is: 85,725.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,839.54 : 218,740.86 = 57,155.33 : x
  2. Step 2: Convert to fraction form
    145,839.54/218,740.86 = 57,155.33/x
  3. Step 3: Cross multiply
    145,839.54x = 218,740.86 × 57,155.33
  4. Step 4: Simplify right side
    145,839.54x = 12,502,204,944.08
  5. Step 5: Solve for x
    x = 12,502,204,944.08/145,839.54
  6. Step 6: Final answer
    x = 85,725.76

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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.