Home / 142,721.30-214,093.02-42,873.68

Finding the Fourth Proportional to 142,721.30, 214,093.02 and 42,873.68

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Solution

The fourth proportional to 142,721.30, 214,093.02 and 42,873.68 is: 64,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,721.30 : 214,093.02 = 42,873.68 : x
  2. Step 2: Convert to fraction form
    142,721.30/214,093.02 = 42,873.68/x
  3. Step 3: Cross multiply
    142,721.30x = 214,093.02 × 42,873.68
  4. Step 4: Simplify right side
    142,721.30x = 9,178,955,629.71
  5. Step 5: Solve for x
    x = 9,178,955,629.71/142,721.30
  6. Step 6: Final answer
    x = 64,313.85

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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.