Home / 113,992.28-157,328.48-77,181.80

Finding the Fourth Proportional to 113,992.28, 157,328.48 and 77,181.80

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Solution

The fourth proportional to 113,992.28, 157,328.48 and 77,181.80 is: 106,523.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,992.28 : 157,328.48 = 77,181.80 : x
  2. Step 2: Convert to fraction form
    113,992.28/157,328.48 = 77,181.80/x
  3. Step 3: Cross multiply
    113,992.28x = 157,328.48 × 77,181.80
  4. Step 4: Simplify right side
    113,992.28x = 12,142,895,277.66
  5. Step 5: Solve for x
    x = 12,142,895,277.66/113,992.28
  6. Step 6: Final answer
    x = 106,523.84

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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.