Home / 103,147.16-142,354.88-57,837.38

Finding the Fourth Proportional to 103,147.16, 142,354.88 and 57,837.38

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Solution

The fourth proportional to 103,147.16, 142,354.88 and 57,837.38 is: 79,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,147.16 : 142,354.88 = 57,837.38 : x
  2. Step 2: Convert to fraction form
    103,147.16/142,354.88 = 57,837.38/x
  3. Step 3: Cross multiply
    103,147.16x = 142,354.88 × 57,837.38
  4. Step 4: Simplify right side
    103,147.16x = 8,233,432,288.45
  5. Step 5: Solve for x
    x = 8,233,432,288.45/103,147.16
  6. Step 6: Final answer
    x = 79,822.19

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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.