Home / 102,954.65-142,077.47-57,632.72

Finding the Fourth Proportional to 102,954.65, 142,077.47 and 57,632.72

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Solution

The fourth proportional to 102,954.65, 142,077.47 and 57,632.72 is: 79,533.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,954.65 : 142,077.47 = 57,632.72 : x
  2. Step 2: Convert to fraction form
    102,954.65/142,077.47 = 57,632.72/x
  3. Step 3: Cross multiply
    102,954.65x = 142,077.47 × 57,632.72
  4. Step 4: Simplify right side
    102,954.65x = 8,188,311,046.82
  5. Step 5: Solve for x
    x = 8,188,311,046.82/102,954.65
  6. Step 6: Final answer
    x = 79,533.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.