Home / 102,351.02-141,242.28-57,028.82

Finding the Fourth Proportional to 102,351.02, 141,242.28 and 57,028.82

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Solution

The fourth proportional to 102,351.02, 141,242.28 and 57,028.82 is: 78,698.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,351.02 : 141,242.28 = 57,028.82 : x
  2. Step 2: Convert to fraction form
    102,351.02/141,242.28 = 57,028.82/x
  3. Step 3: Cross multiply
    102,351.02x = 141,242.28 × 57,028.82
  4. Step 4: Simplify right side
    102,351.02x = 8,054,880,562.51
  5. Step 5: Solve for x
    x = 8,054,880,562.51/102,351.02
  6. Step 6: Final answer
    x = 78,698.59

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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.