Home / 142,288.81-213,441.57-53,543.08

Finding the Fourth Proportional to 142,288.81, 213,441.57 and 53,543.08

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Solution

The fourth proportional to 142,288.81, 213,441.57 and 53,543.08 is: 80,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,288.81 : 213,441.57 = 53,543.08 : x
  2. Step 2: Convert to fraction form
    142,288.81/213,441.57 = 53,543.08/x
  3. Step 3: Cross multiply
    142,288.81x = 213,441.57 × 53,543.08
  4. Step 4: Simplify right side
    142,288.81x = 11,428,319,057.84
  5. Step 5: Solve for x
    x = 11,428,319,057.84/142,288.81
  6. Step 6: Final answer
    x = 80,317.76

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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.