Home / 142,039.54-213,050.96-53,285.61

Finding the Fourth Proportional to 142,039.54, 213,050.96 and 53,285.61

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Solution

The fourth proportional to 142,039.54, 213,050.96 and 53,285.61 is: 79,925.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,039.54 : 213,050.96 = 53,285.61 : x
  2. Step 2: Convert to fraction form
    142,039.54/213,050.96 = 53,285.61/x
  3. Step 3: Cross multiply
    142,039.54x = 213,050.96 × 53,285.61
  4. Step 4: Simplify right side
    142,039.54x = 11,352,551,097.02
  5. Step 5: Solve for x
    x = 11,352,551,097.02/142,039.54
  6. Step 6: Final answer
    x = 79,925.29

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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.