Home / 103,416.12-154,992.95-53,486.91

Finding the Fourth Proportional to 103,416.12, 154,992.95 and 53,486.91

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Solution

The fourth proportional to 103,416.12, 154,992.95 and 53,486.91 is: 80,162.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,416.12 : 154,992.95 = 53,486.91 : x
  2. Step 2: Convert to fraction form
    103,416.12/154,992.95 = 53,486.91/x
  3. Step 3: Cross multiply
    103,416.12x = 154,992.95 × 53,486.91
  4. Step 4: Simplify right side
    103,416.12x = 8,290,093,967.28
  5. Step 5: Solve for x
    x = 8,290,093,967.28/103,416.12
  6. Step 6: Final answer
    x = 80,162.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.