Home / 102,918.90-142,034.93-57,600.82

Finding the Fourth Proportional to 102,918.90, 142,034.93 and 57,600.82

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Solution

The fourth proportional to 102,918.90, 142,034.93 and 57,600.82 is: 79,492.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,918.90 : 142,034.93 = 57,600.82 : x
  2. Step 2: Convert to fraction form
    102,918.90/142,034.93 = 57,600.82/x
  3. Step 3: Cross multiply
    102,918.90x = 142,034.93 × 57,600.82
  4. Step 4: Simplify right side
    102,918.90x = 8,181,328,436.64
  5. Step 5: Solve for x
    x = 8,181,328,436.64/102,918.90
  6. Step 6: Final answer
    x = 79,492.96

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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.