Home / 101,296.05-139,787.98-55,977.18

Finding the Fourth Proportional to 101,296.05, 139,787.98 and 55,977.18

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Solution

The fourth proportional to 101,296.05, 139,787.98 and 55,977.18 is: 77,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,296.05 : 139,787.98 = 55,977.18 : x
  2. Step 2: Convert to fraction form
    101,296.05/139,787.98 = 55,977.18/x
  3. Step 3: Cross multiply
    101,296.05x = 139,787.98 × 55,977.18
  4. Step 4: Simplify right side
    101,296.05x = 7,824,936,918.30
  5. Step 5: Solve for x
    x = 7,824,936,918.30/101,296.05
  6. Step 6: Final answer
    x = 77,248.19

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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.