Home / 142,568.40-213,856.61-53,802.12

Finding the Fourth Proportional to 142,568.40, 213,856.61 and 53,802.12

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Solution

The fourth proportional to 142,568.40, 213,856.61 and 53,802.12 is: 80,704.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,568.40 : 213,856.61 = 53,802.12 : x
  2. Step 2: Convert to fraction form
    142,568.40/213,856.61 = 53,802.12/x
  3. Step 3: Cross multiply
    142,568.40x = 213,856.61 × 53,802.12
  4. Step 4: Simplify right side
    142,568.40x = 11,505,939,526.96
  5. Step 5: Solve for x
    x = 11,505,939,526.96/142,568.40
  6. Step 6: Final answer
    x = 80,704.69

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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.