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Finding the Fourth Proportional to 84,160.80, 116,143.20 and 46,436.40

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Solution

The fourth proportional to 84,160.80, 116,143.20 and 46,436.40 is: 64,082.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,160.80 : 116,143.20 = 46,436.40 : x
  2. Step 2: Convert to fraction form
    84,160.80/116,143.20 = 46,436.40/x
  3. Step 3: Cross multiply
    84,160.80x = 116,143.20 × 46,436.40
  4. Step 4: Simplify right side
    84,160.80x = 5,393,272,092.48
  5. Step 5: Solve for x
    x = 5,393,272,092.48/84,160.80
  6. Step 6: Final answer
    x = 64,082.95

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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.