Home / 142,888.12-214,315.68-37,715.28

Finding the Fourth Proportional to 142,888.12, 214,315.68 and 37,715.28

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Solution

The fourth proportional to 142,888.12, 214,315.68 and 37,715.28 is: 56,568.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,888.12 : 214,315.68 = 37,715.28 : x
  2. Step 2: Convert to fraction form
    142,888.12/214,315.68 = 37,715.28/x
  3. Step 3: Cross multiply
    142,888.12x = 214,315.68 × 37,715.28
  4. Step 4: Simplify right side
    142,888.12x = 8,082,975,879.59
  5. Step 5: Solve for x
    x = 8,082,975,879.59/142,888.12
  6. Step 6: Final answer
    x = 56,568.56

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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.