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Finding the Fourth Proportional to 103,296.41, 142,551.88 and 57,977.21

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Solution

The fourth proportional to 103,296.41, 142,551.88 and 57,977.21 is: 80,010.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,296.41 : 142,551.88 = 57,977.21 : x
  2. Step 2: Convert to fraction form
    103,296.41/142,551.88 = 57,977.21/x
  3. Step 3: Cross multiply
    103,296.41x = 142,551.88 × 57,977.21
  4. Step 4: Simplify right side
    103,296.41x = 8,264,759,424.95
  5. Step 5: Solve for x
    x = 8,264,759,424.95/103,296.41
  6. Step 6: Final answer
    x = 80,010.14

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1.5x scale

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.