Home / 142,514.97-196,669.40-85,151.18

Finding the Fourth Proportional to 142,514.97, 196,669.40 and 85,151.18

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Solution

The fourth proportional to 142,514.97, 196,669.40 and 85,151.18 is: 117,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,514.97 : 196,669.40 = 85,151.18 : x
  2. Step 2: Convert to fraction form
    142,514.97/196,669.40 = 85,151.18/x
  3. Step 3: Cross multiply
    142,514.97x = 196,669.40 × 85,151.18
  4. Step 4: Simplify right side
    142,514.97x = 16,746,630,070.79
  5. Step 5: Solve for x
    x = 16,746,630,070.79/142,514.97
  6. Step 6: Final answer
    x = 117,507.87

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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.