Home / 144,146.08-198,868.88-83,695.20

Finding the Fourth Proportional to 144,146.08, 198,868.88 and 83,695.20

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Solution

The fourth proportional to 144,146.08, 198,868.88 and 83,695.20 is: 115,468.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,146.08 : 198,868.88 = 83,695.20 : x
  2. Step 2: Convert to fraction form
    144,146.08/198,868.88 = 83,695.20/x
  3. Step 3: Cross multiply
    144,146.08x = 198,868.88 × 83,695.20
  4. Step 4: Simplify right side
    144,146.08x = 16,644,370,685.38
  5. Step 5: Solve for x
    x = 16,644,370,685.38/144,146.08
  6. Step 6: Final answer
    x = 115,468.77

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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.