Home / 145,839.38-218,751.75-57,109.14

Finding the Fourth Proportional to 145,839.38, 218,751.75 and 57,109.14

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Solution

The fourth proportional to 145,839.38, 218,751.75 and 57,109.14 is: 85,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,839.38 : 218,751.75 = 57,109.14 : x
  2. Step 2: Convert to fraction form
    145,839.38/218,751.75 = 57,109.14/x
  3. Step 3: Cross multiply
    145,839.38x = 218,751.75 × 57,109.14
  4. Step 4: Simplify right side
    145,839.38x = 12,492,724,316.00
  5. Step 5: Solve for x
    x = 12,492,724,316.00/145,839.38
  6. Step 6: Final answer
    x = 85,660.85

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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.