Home / 141,811.16-195,696.84-77,280.95

Finding the Fourth Proportional to 141,811.16, 195,696.84 and 77,280.95

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Solution

The fourth proportional to 141,811.16, 195,696.84 and 77,280.95 is: 106,646.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,811.16 : 195,696.84 = 77,280.95 : x
  2. Step 2: Convert to fraction form
    141,811.16/195,696.84 = 77,280.95/x
  3. Step 3: Cross multiply
    141,811.16x = 195,696.84 × 77,280.95
  4. Step 4: Simplify right side
    141,811.16x = 15,123,638,486.24
  5. Step 5: Solve for x
    x = 15,123,638,486.24/141,811.16
  6. Step 6: Final answer
    x = 106,646.32

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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.