Home / 103,203.94-142,422.62-57,264.42

Finding the Fourth Proportional to 103,203.94, 142,422.62 and 57,264.42

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Solution

The fourth proportional to 103,203.94, 142,422.62 and 57,264.42 is: 79,025.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,203.94 : 142,422.62 = 57,264.42 : x
  2. Step 2: Convert to fraction form
    103,203.94/142,422.62 = 57,264.42/x
  3. Step 3: Cross multiply
    103,203.94x = 142,422.62 × 57,264.42
  4. Step 4: Simplify right side
    103,203.94x = 8,155,748,442.86
  5. Step 5: Solve for x
    x = 8,155,748,442.86/103,203.94
  6. Step 6: Final answer
    x = 79,025.55

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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.