Home / 99,140.94-136,813.54-53,817.95

Finding the Fourth Proportional to 99,140.94, 136,813.54 and 53,817.95

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Solution

The fourth proportional to 99,140.94, 136,813.54 and 53,817.95 is: 74,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,140.94 : 136,813.54 = 53,817.95 : x
  2. Step 2: Convert to fraction form
    99,140.94/136,813.54 = 53,817.95/x
  3. Step 3: Cross multiply
    99,140.94x = 136,813.54 × 53,817.95
  4. Step 4: Simplify right side
    99,140.94x = 7,363,024,255.04
  5. Step 5: Solve for x
    x = 7,363,024,255.04/99,140.94
  6. Step 6: Final answer
    x = 74,268.25

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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.